[media] move the remaining USB drivers to drivers/media/usb

Move the 3 remaining usb drivers to their proper space.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

7 files changed, 0 insertions, 6499 deletions

diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 097b17ced17..f5279923202 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -606,56 +606,6 @@ config VIDEO_VIVI
 	  In doubt, say N.
 
 #
-# USB Multimedia device configuration
-#
-
-menuconfig V4L_USB_DRIVERS
-	bool "V4L USB devices"
-	depends on USB
-	default y
-
-if V4L_USB_DRIVERS && MEDIA_CAMERA_SUPPORT
-
-config USB_ZR364XX
-	tristate "USB ZR364XX Camera support"
-	depends on VIDEO_V4L2
-	select VIDEOBUF_GEN
-	select VIDEOBUF_VMALLOC
-	---help---
-	  Say Y here if you want to connect this type of camera to your
-	  computer's USB port.
-	  See <file:Documentation/video4linux/zr364xx.txt> for more info
-	  and list of supported cameras.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called zr364xx.
-
-config USB_STKWEBCAM
-	tristate "USB Syntek DC1125 Camera support"
-	depends on VIDEO_V4L2 && EXPERIMENTAL
-	---help---
-	  Say Y here if you want to use this type of camera.
-	  Supported devices are typically found in some Asus laptops,
-	  with USB id 174f:a311 and 05e1:0501. Other Syntek cameras
-	  may be supported by the stk11xx driver, from which this is
-	  derived, see <http://sourceforge.net/projects/syntekdriver/>
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called stkwebcam.
-
-config USB_S2255
-	tristate "USB Sensoray 2255 video capture device"
-	depends on VIDEO_V4L2
-	select VIDEOBUF_VMALLOC
-	default n
-	help
-	  Say Y here if you want support for the Sensoray 2255 USB device.
-	  This driver can be compiled as a module, called s2255drv.
-
-
-endif # V4L_USB_DRIVERS && MEDIA_CAMERA_SUPPORT
-
-#
 # PCI drivers configuration - No devices here are for webcams
 #
 
diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile
index a22a2580ce3..4ad5bd9246b 100644
--- a/drivers/media/video/Makefile
+++ b/drivers/media/video/Makefile
@@ -4,8 +4,6 @@
 
 msp3400-objs	:=	msp3400-driver.o msp3400-kthreads.o
 
-stkwebcam-objs	:=	stk-webcam.o stk-sensor.o
-
 omap2cam-objs	:=	omap24xxcam.o omap24xxcam-dma.o
 
 # Helper modules
@@ -119,12 +117,6 @@ obj-$(CONFIG_VIDEO_VIA_CAMERA) += via-camera.o
 
 obj-$(CONFIG_VIDEO_OMAP3)	+= omap3isp/
 
-obj-$(CONFIG_USB_ZR364XX)       += zr364xx.o
-obj-$(CONFIG_USB_STKWEBCAM)     += stkwebcam.o
-
-
-obj-$(CONFIG_USB_S2255)		+= s2255drv.o
-
 obj-$(CONFIG_VIDEO_IVTV) += ivtv/
 obj-$(CONFIG_VIDEO_CX18) += cx18/
 
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
deleted file mode 100644
index 6c7960cc750..00000000000
--- a/drivers/media/video/s2255drv.c
+++ /dev/null
@@ -1,2689 +0,0 @@
-/*
- *  s2255drv.c - a driver for the Sensoray 2255 USB video capture device
- *
- *   Copyright (C) 2007-2010 by Sensoray Company Inc.
- *                              Dean Anderson
- *
- * Some video buffer code based on vivi driver:
- *
- * Sensoray 2255 device supports 4 simultaneous channels.
- * The channels are not "crossbar" inputs, they are physically
- * attached to separate video decoders.
- *
- * Because of USB2.0 bandwidth limitations. There is only a
- * certain amount of data which may be transferred at one time.
- *
- * Example maximum bandwidth utilization:
- *
- * -full size, color mode YUYV or YUV422P: 2 channels at once
- * -full or half size Grey scale: all 4 channels at once
- * -half size, color mode YUYV or YUV422P: all 4 channels at once
- * -full size, color mode YUYV or YUV422P 1/2 frame rate: all 4 channels
- *  at once.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/firmware.h>
-#include <linux/kernel.h>
-#include <linux/mutex.h>
-#include <linux/slab.h>
-#include <linux/videodev2.h>
-#include <linux/mm.h>
-#include <media/videobuf-vmalloc.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <linux/vmalloc.h>
-#include <linux/usb.h>
-
-#define S2255_VERSION		"1.22.1"
-#define FIRMWARE_FILE_NAME "f2255usb.bin"
-
-/* default JPEG quality */
-#define S2255_DEF_JPEG_QUAL     50
-/* vendor request in */
-#define S2255_VR_IN		0
-/* vendor request out */
-#define S2255_VR_OUT		1
-/* firmware query */
-#define S2255_VR_FW		0x30
-/* USB endpoint number for configuring the device */
-#define S2255_CONFIG_EP         2
-/* maximum time for DSP to start responding after last FW word loaded(ms) */
-#define S2255_DSP_BOOTTIME      800
-/* maximum time to wait for firmware to load (ms) */
-#define S2255_LOAD_TIMEOUT      (5000 + S2255_DSP_BOOTTIME)
-#define S2255_DEF_BUFS          16
-#define S2255_SETMODE_TIMEOUT   500
-#define S2255_VIDSTATUS_TIMEOUT 350
-#define S2255_MARKER_FRAME	cpu_to_le32(0x2255DA4AL)
-#define S2255_MARKER_RESPONSE	cpu_to_le32(0x2255ACACL)
-#define S2255_RESPONSE_SETMODE  cpu_to_le32(0x01)
-#define S2255_RESPONSE_FW       cpu_to_le32(0x10)
-#define S2255_RESPONSE_STATUS   cpu_to_le32(0x20)
-#define S2255_USB_XFER_SIZE	(16 * 1024)
-#define MAX_CHANNELS		4
-#define SYS_FRAMES		4
-/* maximum size is PAL full size plus room for the marker header(s) */
-#define SYS_FRAMES_MAXSIZE	(720*288*2*2 + 4096)
-#define DEF_USB_BLOCK		S2255_USB_XFER_SIZE
-#define LINE_SZ_4CIFS_NTSC	640
-#define LINE_SZ_2CIFS_NTSC	640
-#define LINE_SZ_1CIFS_NTSC	320
-#define LINE_SZ_4CIFS_PAL	704
-#define LINE_SZ_2CIFS_PAL	704
-#define LINE_SZ_1CIFS_PAL	352
-#define NUM_LINES_4CIFS_NTSC	240
-#define NUM_LINES_2CIFS_NTSC	240
-#define NUM_LINES_1CIFS_NTSC	240
-#define NUM_LINES_4CIFS_PAL	288
-#define NUM_LINES_2CIFS_PAL	288
-#define NUM_LINES_1CIFS_PAL	288
-#define LINE_SZ_DEF		640
-#define NUM_LINES_DEF		240
-
-
-/* predefined settings */
-#define FORMAT_NTSC	1
-#define FORMAT_PAL	2
-
-#define SCALE_4CIFS	1	/* 640x480(NTSC) or 704x576(PAL) */
-#define SCALE_2CIFS	2	/* 640x240(NTSC) or 704x288(PAL) */
-#define SCALE_1CIFS	3	/* 320x240(NTSC) or 352x288(PAL) */
-/* SCALE_4CIFSI is the 2 fields interpolated into one */
-#define SCALE_4CIFSI	4	/* 640x480(NTSC) or 704x576(PAL) high quality */
-
-#define COLOR_YUVPL	1	/* YUV planar */
-#define COLOR_YUVPK	2	/* YUV packed */
-#define COLOR_Y8	4	/* monochrome */
-#define COLOR_JPG       5       /* JPEG */
-
-#define MASK_COLOR       0x000000ff
-#define MASK_JPG_QUALITY 0x0000ff00
-#define MASK_INPUT_TYPE  0x000f0000
-/* frame decimation. */
-#define FDEC_1		1	/* capture every frame. default */
-#define FDEC_2		2	/* capture every 2nd frame */
-#define FDEC_3		3	/* capture every 3rd frame */
-#define FDEC_5		5	/* capture every 5th frame */
-
-/*-------------------------------------------------------
- * Default mode parameters.
- *-------------------------------------------------------*/
-#define DEF_SCALE	SCALE_4CIFS
-#define DEF_COLOR	COLOR_YUVPL
-#define DEF_FDEC	FDEC_1
-#define DEF_BRIGHT	0
-#define DEF_CONTRAST	0x5c
-#define DEF_SATURATION	0x80
-#define DEF_HUE		0
-
-/* usb config commands */
-#define IN_DATA_TOKEN	cpu_to_le32(0x2255c0de)
-#define CMD_2255	0xc2255000
-#define CMD_SET_MODE	cpu_to_le32((CMD_2255 | 0x10))
-#define CMD_START	cpu_to_le32((CMD_2255 | 0x20))
-#define CMD_STOP	cpu_to_le32((CMD_2255 | 0x30))
-#define CMD_STATUS	cpu_to_le32((CMD_2255 | 0x40))
-
-struct s2255_mode {
-	u32 format;	/* input video format (NTSC, PAL) */
-	u32 scale;	/* output video scale */
-	u32 color;	/* output video color format */
-	u32 fdec;	/* frame decimation */
-	u32 bright;	/* brightness */
-	u32 contrast;	/* contrast */
-	u32 saturation;	/* saturation */
-	u32 hue;	/* hue (NTSC only)*/
-	u32 single;	/* capture 1 frame at a time (!=0), continuously (==0)*/
-	u32 usb_block;	/* block size. should be 4096 of DEF_USB_BLOCK */
-	u32 restart;	/* if DSP requires restart */
-};
-
-
-#define S2255_READ_IDLE		0
-#define S2255_READ_FRAME	1
-
-/* frame structure */
-struct s2255_framei {
-	unsigned long size;
-	unsigned long ulState;	/* ulState:S2255_READ_IDLE, S2255_READ_FRAME*/
-	void *lpvbits;		/* image data */
-	unsigned long cur_size;	/* current data copied to it */
-};
-
-/* image buffer structure */
-struct s2255_bufferi {
-	unsigned long dwFrames;			/* number of frames in buffer */
-	struct s2255_framei frame[SYS_FRAMES];	/* array of FRAME structures */
-};
-
-#define DEF_MODEI_NTSC_CONT	{FORMAT_NTSC, DEF_SCALE, DEF_COLOR,	\
-			DEF_FDEC, DEF_BRIGHT, DEF_CONTRAST, DEF_SATURATION, \
-			DEF_HUE, 0, DEF_USB_BLOCK, 0}
-
-struct s2255_dmaqueue {
-	struct list_head	active;
-	struct s2255_dev	*dev;
-};
-
-/* for firmware loading, fw_state */
-#define S2255_FW_NOTLOADED	0
-#define S2255_FW_LOADED_DSPWAIT	1
-#define S2255_FW_SUCCESS	2
-#define S2255_FW_FAILED		3
-#define S2255_FW_DISCONNECTING  4
-#define S2255_FW_MARKER		cpu_to_le32(0x22552f2f)
-/* 2255 read states */
-#define S2255_READ_IDLE         0
-#define S2255_READ_FRAME        1
-struct s2255_fw {
-	int		      fw_loaded;
-	int		      fw_size;
-	struct urb	      *fw_urb;
-	atomic_t	      fw_state;
-	void		      *pfw_data;
-	wait_queue_head_t     wait_fw;
-	const struct firmware *fw;
-};
-
-struct s2255_pipeinfo {
-	u32 max_transfer_size;
-	u32 cur_transfer_size;
-	u8 *transfer_buffer;
-	u32 state;
-	void *stream_urb;
-	void *dev;	/* back pointer to s2255_dev struct*/
-	u32 err_count;
-	u32 idx;
-};
-
-struct s2255_fmt; /*forward declaration */
-struct s2255_dev;
-
-struct s2255_channel {
-	struct video_device	vdev;
-	int			resources;
-	struct s2255_dmaqueue	vidq;
-	struct s2255_bufferi	buffer;
-	struct s2255_mode	mode;
-	/* jpeg compression */
-	struct v4l2_jpegcompression jc;
-	/* capture parameters (for high quality mode full size) */
-	struct v4l2_captureparm cap_parm;
-	int			cur_frame;
-	int			last_frame;
-
-	int			b_acquire;
-	/* allocated image size */
-	unsigned long		req_image_size;
-	/* received packet size */
-	unsigned long		pkt_size;
-	int			bad_payload;
-	unsigned long		frame_count;
-	/* if JPEG image */
-	int                     jpg_size;
-	/* if channel configured to default state */
-	int                     configured;
-	wait_queue_head_t       wait_setmode;
-	int                     setmode_ready;
-	/* video status items */
-	int                     vidstatus;
-	wait_queue_head_t       wait_vidstatus;
-	int                     vidstatus_ready;
-	unsigned int		width;
-	unsigned int		height;
-	const struct s2255_fmt	*fmt;
-	int idx; /* channel number on device, 0-3 */
-};
-
-
-struct s2255_dev {
-	struct s2255_channel    channel[MAX_CHANNELS];
-	struct v4l2_device 	v4l2_dev;
-	atomic_t                num_channels;
-	int			frames;
-	struct mutex		lock;	/* channels[].vdev.lock */
-	struct usb_device	*udev;
-	struct usb_interface	*interface;
-	u8			read_endpoint;
-	struct timer_list	timer;
-	struct s2255_fw	*fw_data;
-	struct s2255_pipeinfo	pipe;
-	u32			cc;	/* current channel */
-	int			frame_ready;
-	int                     chn_ready;
-	spinlock_t              slock;
-	/* dsp firmware version (f2255usb.bin) */
-	int                     dsp_fw_ver;
-	u16                     pid; /* product id */
-};
-
-static inline struct s2255_dev *to_s2255_dev(struct v4l2_device *v4l2_dev)
-{
-	return container_of(v4l2_dev, struct s2255_dev, v4l2_dev);
-}
-
-struct s2255_fmt {
-	char *name;
-	u32 fourcc;
-	int depth;
-};
-
-/* buffer for one video frame */
-struct s2255_buffer {
-	/* common v4l buffer stuff -- must be first */
-	struct videobuf_buffer vb;
-	const struct s2255_fmt *fmt;
-};
-
-struct s2255_fh {
-	struct s2255_dev	*dev;
-	struct videobuf_queue	vb_vidq;
-	enum v4l2_buf_type	type;
-	struct s2255_channel	*channel;
-	int			resources;
-};
-
-/* current cypress EEPROM firmware version */
-#define S2255_CUR_USB_FWVER	((3 << 8) | 12)
-/* current DSP FW version */
-#define S2255_CUR_DSP_FWVER     10104
-/* Need DSP version 5+ for video status feature */
-#define S2255_MIN_DSP_STATUS      5
-#define S2255_MIN_DSP_COLORFILTER 8
-#define S2255_NORMS		(V4L2_STD_PAL | V4L2_STD_NTSC)
-
-/* private V4L2 controls */
-
-/*
- * The following chart displays how COLORFILTER should be set
- *  =========================================================
- *  =     fourcc              =     COLORFILTER             =
- *  =                         ===============================
- *  =                         =   0             =    1      =
- *  =========================================================
- *  =  V4L2_PIX_FMT_GREY(Y8)  = monochrome from = monochrome=
- *  =                         = s-video or      = composite =
- *  =                         = B/W camera      = input     =
- *  =========================================================
- *  =    other                = color, svideo   = color,    =
- *  =                         =                 = composite =
- *  =========================================================
- *
- * Notes:
- *   channels 0-3 on 2255 are composite
- *   channels 0-1 on 2257 are composite, 2-3 are s-video
- * If COLORFILTER is 0 with a composite color camera connected,
- * the output will appear monochrome but hatching
- * will occur.
- * COLORFILTER is different from "color killer" and "color effects"
- * for reasons above.
- */
-#define S2255_V4L2_YC_ON  1
-#define S2255_V4L2_YC_OFF 0
-#define V4L2_CID_PRIVATE_COLORFILTER (V4L2_CID_PRIVATE_BASE + 0)
-
-/* frame prefix size (sent once every frame) */
-#define PREFIX_SIZE		512
-
-/* Channels on box are in reverse order */
-static unsigned long G_chnmap[MAX_CHANNELS] = {3, 2, 1, 0};
-
-static int debug;
-static int *s2255_debug = &debug;
-
-static int s2255_start_readpipe(struct s2255_dev *dev);
-static void s2255_stop_readpipe(struct s2255_dev *dev);
-static int s2255_start_acquire(struct s2255_channel *channel);
-static int s2255_stop_acquire(struct s2255_channel *channel);
-static void s2255_fillbuff(struct s2255_channel *chn, struct s2255_buffer *buf,
-			   int jpgsize);
-static int s2255_set_mode(struct s2255_channel *chan, struct s2255_mode *mode);
-static int s2255_board_shutdown(struct s2255_dev *dev);
-static void s2255_fwload_start(struct s2255_dev *dev, int reset);
-static void s2255_destroy(struct s2255_dev *dev);
-static long s2255_vendor_req(struct s2255_dev *dev, unsigned char req,
-			     u16 index, u16 value, void *buf,
-			     s32 buf_len, int bOut);
-
-/* dev_err macro with driver name */
-#define S2255_DRIVER_NAME "s2255"
-#define s2255_dev_err(dev, fmt, arg...)					\
-		dev_err(dev, S2255_DRIVER_NAME " - " fmt, ##arg)
-
-#define dprintk(level, fmt, arg...)					\
-	do {								\
-		if (*s2255_debug >= (level)) {				\
-			printk(KERN_DEBUG S2255_DRIVER_NAME		\
-				": " fmt, ##arg);			\
-		}							\
-	} while (0)
-
-static struct usb_driver s2255_driver;
-
-/* Declare static vars that will be used as parameters */
-static unsigned int vid_limit = 16;	/* Video memory limit, in Mb */
-
-/* start video number */
-static int video_nr = -1;	/* /dev/videoN, -1 for autodetect */
-
-/* Enable jpeg capture. */
-static int jpeg_enable = 1;
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Debug level(0-100) default 0");
-module_param(vid_limit, int, 0644);
-MODULE_PARM_DESC(vid_limit, "video memory limit(Mb)");
-module_param(video_nr, int, 0644);
-MODULE_PARM_DESC(video_nr, "start video minor(-1 default autodetect)");
-module_param(jpeg_enable, int, 0644);
-MODULE_PARM_DESC(jpeg_enable, "Jpeg enable(1-on 0-off) default 1");
-
-/* USB device table */
-#define USB_SENSORAY_VID	0x1943
-static struct usb_device_id s2255_table[] = {
-	{USB_DEVICE(USB_SENSORAY_VID, 0x2255)},
-	{USB_DEVICE(USB_SENSORAY_VID, 0x2257)}, /*same family as 2255*/
-	{ }			/* Terminating entry */
-};
-MODULE_DEVICE_TABLE(usb, s2255_table);
-
-#define BUFFER_TIMEOUT msecs_to_jiffies(400)
-
-/* image formats.  */
-/* JPEG formats must be defined last to support jpeg_enable parameter */
-static const struct s2255_fmt formats[] = {
-	{
-		.name = "4:2:2, planar, YUV422P",
-		.fourcc = V4L2_PIX_FMT_YUV422P,
-		.depth = 16
-
-	}, {
-		.name = "4:2:2, packed, YUYV",
-		.fourcc = V4L2_PIX_FMT_YUYV,
-		.depth = 16
-
-	}, {
-		.name = "4:2:2, packed, UYVY",
-		.fourcc = V4L2_PIX_FMT_UYVY,
-		.depth = 16
-	}, {
-		.name = "8bpp GREY",
-		.fourcc = V4L2_PIX_FMT_GREY,
-		.depth = 8
-	}, {
-		.name = "JPG",
-		.fourcc = V4L2_PIX_FMT_JPEG,
-		.depth = 24
-	}, {
-		.name = "MJPG",
-		.fourcc = V4L2_PIX_FMT_MJPEG,
-		.depth = 24
-	}
-};
-
-static int norm_maxw(struct video_device *vdev)
-{
-	return (vdev->current_norm & V4L2_STD_NTSC) ?
-	    LINE_SZ_4CIFS_NTSC : LINE_SZ_4CIFS_PAL;
-}
-
-static int norm_maxh(struct video_device *vdev)
-{
-	return (vdev->current_norm & V4L2_STD_NTSC) ?
-	    (NUM_LINES_1CIFS_NTSC * 2) : (NUM_LINES_1CIFS_PAL * 2);
-}
-
-static int norm_minw(struct video_device *vdev)
-{
-	return (vdev->current_norm & V4L2_STD_NTSC) ?
-	    LINE_SZ_1CIFS_NTSC : LINE_SZ_1CIFS_PAL;
-}
-
-static int norm_minh(struct video_device *vdev)
-{
-	return (vdev->current_norm & V4L2_STD_NTSC) ?
-	    (NUM_LINES_1CIFS_NTSC) : (NUM_LINES_1CIFS_PAL);
-}
-
-
-/*
- * TODO: fixme: move YUV reordering to hardware
- * converts 2255 planar format to yuyv or uyvy
- */
-static void planar422p_to_yuv_packed(const unsigned char *in,
-				     unsigned char *out,
-				     int width, int height,
-				     int fmt)
-{
-	unsigned char *pY;
-	unsigned char *pCb;
-	unsigned char *pCr;
-	unsigned long size = height * width;
-	unsigned int i;
-	pY = (unsigned char *)in;
-	pCr = (unsigned char *)in + height * width;
-	pCb = (unsigned char *)in + height * width + (height * width / 2);
-	for (i = 0; i < size * 2; i += 4) {
-		out[i] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCr++;
-		out[i + 1] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCr++ : *pY++;
-		out[i + 2] = (fmt == V4L2_PIX_FMT_YUYV) ? *pY++ : *pCb++;
-		out[i + 3] = (fmt == V4L2_PIX_FMT_YUYV) ? *pCb++ : *pY++;
-	}
-	return;
-}
-
-static void s2255_reset_dsppower(struct s2255_dev *dev)
-{
-	s2255_vendor_req(dev, 0x40, 0x0000, 0x0001, NULL, 0, 1);
-	msleep(10);
-	s2255_vendor_req(dev, 0x50, 0x0000, 0x0000, NULL, 0, 1);
-	msleep(600);
-	s2255_vendor_req(dev, 0x10, 0x0000, 0x0000, NULL, 0, 1);
-	return;
-}
-
-/* kickstarts the firmware loading. from probe
- */
-static void s2255_timer(unsigned long user_data)
-{
-	struct s2255_fw *data = (struct s2255_fw *)user_data;
-	dprintk(100, "%s\n", __func__);
-	if (usb_submit_urb(data->fw_urb, GFP_ATOMIC) < 0) {
-		printk(KERN_ERR "s2255: can't submit urb\n");
-		atomic_set(&data->fw_state, S2255_FW_FAILED);
-		/* wake up anything waiting for the firmware */
-		wake_up(&data->wait_fw);
-		return;
-	}
-}
-
-
-/* this loads the firmware asynchronously.
-   Originally this was done synchroously in probe.
-   But it is better to load it asynchronously here than block
-   inside the probe function. Blocking inside probe affects boot time.
-   FW loading is triggered by the timer in the probe function
-*/
-static void s2255_fwchunk_complete(struct urb *urb)
-{
-	struct s2255_fw *data = urb->context;
-	struct usb_device *udev = urb->dev;
-	int len;
-	dprintk(100, "%s: udev %p urb %p", __func__, udev, urb);
-	if (urb->status) {
-		dev_err(&udev->dev, "URB failed with status %d\n", urb->status);
-		atomic_set(&data->fw_state, S2255_FW_FAILED);
-		/* wake up anything waiting for the firmware */
-		wake_up(&data->wait_fw);
-		return;
-	}
-	if (data->fw_urb == NULL) {
-		s2255_dev_err(&udev->dev, "disconnected\n");
-		atomic_set(&data->fw_state, S2255_FW_FAILED);
-		/* wake up anything waiting for the firmware */
-		wake_up(&data->wait_fw);
-		return;
-	}
-#define CHUNK_SIZE 512
-	/* all USB transfers must be done with continuous kernel memory.
-	   can't allocate more than 128k in current linux kernel, so
-	   upload the firmware in chunks
-	 */
-	if (data->fw_loaded < data->fw_size) {
-		len = (data->fw_loaded + CHUNK_SIZE) > data->fw_size ?
-		    data->fw_size % CHUNK_SIZE : CHUNK_SIZE;
-
-		if (len < CHUNK_SIZE)
-			memset(data->pfw_data, 0, CHUNK_SIZE);
-
-		dprintk(100, "completed len %d, loaded %d \n", len,
-			data->fw_loaded);
-
-		memcpy(data->pfw_data,
-		       (char *) data->fw->data + data->fw_loaded, len);
-
-		usb_fill_bulk_urb(data->fw_urb, udev, usb_sndbulkpipe(udev, 2),
-				  data->pfw_data, CHUNK_SIZE,
-				  s2255_fwchunk_complete, data);
-		if (usb_submit_urb(data->fw_urb, GFP_ATOMIC) < 0) {
-			dev_err(&udev->dev, "failed submit URB\n");
-			atomic_set(&data->fw_state, S2255_FW_FAILED);
-			/* wake up anything waiting for the firmware */
-			wake_up(&data->wait_fw);
-			return;
-		}
-		data->fw_loaded += len;
-	} else {
-		atomic_set(&data->fw_state, S2255_FW_LOADED_DSPWAIT);
-		dprintk(100, "%s: firmware upload complete\n", __func__);
-	}
-	return;
-
-}
-
-static int s2255_got_frame(struct s2255_channel *channel, int jpgsize)
-{
-	struct s2255_dmaqueue *dma_q = &channel->vidq;
-	struct s2255_buffer *buf;
-	struct s2255_dev *dev = to_s2255_dev(channel->vdev.v4l2_dev);
-	unsigned long flags = 0;
-	int rc = 0;
-	spin_lock_irqsave(&dev->slock, flags);
-	if (list_empty(&dma_q->active)) {
-		dprintk(1, "No active queue to serve\n");
-		rc = -1;
-		goto unlock;
-	}
-	buf = list_entry(dma_q->active.next,
-			 struct s2255_buffer, vb.queue);
-	list_del(&buf->vb.queue);
-	do_gettimeofday(&buf->vb.ts);
-	s2255_fillbuff(channel, buf, jpgsize);
-	wake_up(&buf->vb.done);
-	dprintk(2, "%s: [buf/i] [%p/%d]\n", __func__, buf, buf->vb.i);
-unlock:
-	spin_unlock_irqrestore(&dev->slock, flags);
-	return rc;
-}
-
-static const struct s2255_fmt *format_by_fourcc(int fourcc)
-{
-	unsigned int i;
-	for (i = 0; i < ARRAY_SIZE(formats); i++) {
-		if (-1 == formats[i].fourcc)
-			continue;
-	if (!jpeg_enable && ((formats[i].fourcc == V4L2_PIX_FMT_JPEG) ||
-			     (formats[i].fourcc == V4L2_PIX_FMT_MJPEG)))
-	    continue;
-		if (formats[i].fourcc == fourcc)
-			return formats + i;
-	}
-	return NULL;
-}
-
-/* video buffer vmalloc implementation based partly on VIVI driver which is
- *          Copyright (c) 2006 by
- *                  Mauro Carvalho Chehab <mchehab--a.t--infradead.org>
- *                  Ted Walther <ted--a.t--enumera.com>
- *                  John Sokol <sokol--a.t--videotechnology.com>
- *                  http://v4l.videotechnology.com/
- *
- */
-static void s2255_fillbuff(struct s2255_channel *channel,
-			   struct s2255_buffer *buf, int jpgsize)
-{
-	int pos = 0;
-	struct timeval ts;
-	const char *tmpbuf;
-	char *vbuf = videobuf_to_vmalloc(&buf->vb);
-	unsigned long last_frame;
-
-	if (!vbuf)
-		return;
-	last_frame = channel->last_frame;
-	if (last_frame != -1) {
-		tmpbuf =
-		    (const char *)channel->buffer.frame[last_frame].lpvbits;
-		switch (buf->fmt->fourcc) {
-		case V4L2_PIX_FMT_YUYV:
-		case V4L2_PIX_FMT_UYVY:
-			planar422p_to_yuv_packed((const unsigned char *)tmpbuf,
-						 vbuf, buf->vb.width,
-						 buf->vb.height,
-						 buf->fmt->fourcc);
-			break;
-		case V4L2_PIX_FMT_GREY:
-			memcpy(vbuf, tmpbuf, buf->vb.width * buf->vb.height);
-			break;
-		case V4L2_PIX_FMT_JPEG:
-		case V4L2_PIX_FMT_MJPEG:
-			buf->vb.size = jpgsize;
-			memcpy(vbuf, tmpbuf, buf->vb.size);
-			break;
-		case V4L2_PIX_FMT_YUV422P:
-			memcpy(vbuf, tmpbuf,
-			       buf->vb.width * buf->vb.height * 2);
-			break;
-		default:
-			printk(KERN_DEBUG "s2255: unknown format?\n");
-		}
-		channel->last_frame = -1;
-	} else {
-		printk(KERN_ERR "s2255: =======no frame\n");
-		return;
-
-	}
-	dprintk(2, "s2255fill at : Buffer 0x%08lx size= %d\n",
-		(unsigned long)vbuf, pos);
-	/* tell v4l buffer was filled */
-
-	buf->vb.field_count = channel->frame_count * 2;
-	do_gettimeofday(&ts);
-	buf->vb.ts = ts;
-	buf->vb.state = VIDEOBUF_DONE;
-}
-
-
-/* ------------------------------------------------------------------
-   Videobuf operations
-   ------------------------------------------------------------------*/
-
-static int buffer_setup(struct videobuf_queue *vq, unsigned int *count,
-			unsigned int *size)
-{
-	struct s2255_fh *fh = vq->priv_data;
-	struct s2255_channel *channel = fh->channel;
-	*size = channel->width * channel->height * (channel->fmt->depth >> 3);
-
-	if (0 == *count)
-		*count = S2255_DEF_BUFS;
-
-	if (*size * *count > vid_limit * 1024 * 1024)
-		*count = (vid_limit * 1024 * 1024) / *size;
-
-	return 0;
-}
-
-static void free_buffer(struct videobuf_queue *vq, struct s2255_buffer *buf)
-{
-	dprintk(4, "%s\n", __func__);
-
-	videobuf_vmalloc_free(&buf->vb);
-	buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
-			  enum v4l2_field field)
-{
-	struct s2255_fh *fh = vq->priv_data;
-	struct s2255_channel *channel = fh->channel;
-	struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb);
-	int rc;
-	int w = channel->width;
-	int h = channel->height;
-	dprintk(4, "%s, field=%d\n", __func__, field);
-	if (channel->fmt == NULL)
-		return -EINVAL;
-
-	if ((w < norm_minw(&channel->vdev)) ||
-	    (w > norm_maxw(&channel->vdev)) ||
-	    (h < norm_minh(&channel->vdev)) ||
-	    (h > norm_maxh(&channel->vdev))) {
-		dprintk(4, "invalid buffer prepare\n");
-		return -EINVAL;
-	}
-	buf->vb.size = w * h * (channel->fmt->depth >> 3);
-	if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) {
-		dprintk(4, "invalid buffer prepare\n");
-		return -EINVAL;
-	}
-
-	buf->fmt = channel->fmt;
-	buf->vb.width = w;
-	buf->vb.height = h;
-	buf->vb.field = field;
-
-	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
-		rc = videobuf_iolock(vq, &buf->vb, NULL);
-		if (rc < 0)
-			goto fail;
-	}
-
-	buf->vb.state = VIDEOBUF_PREPARED;
-	return 0;
-fail:
-	free_buffer(vq, buf);
-	return rc;
-}
-
-static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
-	struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb);
-	struct s2255_fh *fh = vq->priv_data;
-	struct s2255_channel *channel = fh->channel;
-	struct s2255_dmaqueue *vidq = &channel->vidq;
-	dprintk(1, "%s\n", __func__);
-	buf->vb.state = VIDEOBUF_QUEUED;
-	list_add_tail(&buf->vb.queue, &vidq->active);
-}
-
-static void buffer_release(struct videobuf_queue *vq,
-			   struct videobuf_buffer *vb)
-{
-	struct s2255_buffer *buf = container_of(vb, struct s2255_buffer, vb);
-	struct s2255_fh *fh = vq->priv_data;
-	dprintk(4, "%s %d\n", __func__, fh->channel->idx);
-	free_buffer(vq, buf);
-}
-
-static struct videobuf_queue_ops s2255_video_qops = {
-	.buf_setup = buffer_setup,
-	.buf_prepare = buffer_prepare,
-	.buf_queue = buffer_queue,
-	.buf_release = buffer_release,
-};
-
-
-static int res_get(struct s2255_fh *fh)
-{
-	struct s2255_channel *channel = fh->channel;
-	/* is it free? */
-	if (channel->resources)
-		return 0; /* no, someone else uses it */
-	/* it's free, grab it */
-	channel->resources = 1;
-	fh->resources = 1;
-	dprintk(1, "s2255: res: get\n");
-	return 1;
-}
-
-static int res_locked(struct s2255_fh *fh)
-{
-	return fh->channel->resources;
-}
-
-static int res_check(struct s2255_fh *fh)
-{
-	return fh->resources;
-}
-
-
-static void res_free(struct s2255_fh *fh)
-{
-	struct s2255_channel *channel = fh->channel;
-	channel->resources = 0;
-	fh->resources = 0;
-	dprintk(1, "res: put\n");
-}
-
-static int vidioc_querymenu(struct file *file, void *priv,
-			    struct v4l2_querymenu *qmenu)
-{
-	static const char *colorfilter[] = {
-		"Off",
-		"On",
-		NULL
-	};
-	if (qmenu->id == V4L2_CID_PRIVATE_COLORFILTER) {
-		int i;
-		const char **menu_items = colorfilter;
-		for (i = 0; i < qmenu->index && menu_items[i]; i++)
-			; /* do nothing (from v4l2-common.c) */
-		if (menu_items[i] == NULL || menu_items[i][0] == '\0')
-			return -EINVAL;
-		strlcpy(qmenu->name, menu_items[qmenu->index],
-			sizeof(qmenu->name));
-		return 0;
-	}
-	return v4l2_ctrl_query_menu(qmenu, NULL, NULL);
-}
-
-static int vidioc_querycap(struct file *file, void *priv,
-			   struct v4l2_capability *cap)
-{
-	struct s2255_fh *fh = file->private_data;
-	struct s2255_dev *dev = fh->dev;
-	strlcpy(cap->driver, "s2255", sizeof(cap->driver));
-	strlcpy(cap->card, "s2255", sizeof(cap->card));
-	usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
-	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
-	return 0;
-}
-
-static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
-			       struct v4l2_fmtdesc *f)
-{
-	int index = f->index;
-
-	if (index >= ARRAY_SIZE(formats))
-		return -EINVAL;
-	if (!jpeg_enable && ((formats[index].fourcc == V4L2_PIX_FMT_JPEG) ||
-			(formats[index].fourcc == V4L2_PIX_FMT_MJPEG)))
-		return -EINVAL;
-	dprintk(4, "name %s\n", formats[index].name);
-	strlcpy(f->description, formats[index].name, sizeof(f->description));
-	f->pixelformat = formats[index].fourcc;
-	return 0;
-}
-
-static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
-			    struct v4l2_format *f)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-
-	f->fmt.pix.width = channel->width;
-	f->fmt.pix.height = channel->height;
-	f->fmt.pix.field = fh->vb_vidq.field;
-	f->fmt.pix.pixelformat = channel->fmt->fourcc;
-	f->fmt.pix.bytesperline = f->fmt.pix.width * (channel->fmt->depth >> 3);
-	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
-	return 0;
-}
-
-static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
-			      struct v4l2_format *f)
-{
-	const struct s2255_fmt *fmt;
-	enum v4l2_field field;
-	int  b_any_field = 0;
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-	int is_ntsc;
-	is_ntsc =
-		(channel->vdev.current_norm & V4L2_STD_NTSC) ? 1 : 0;
-
-	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
-
-	if (fmt == NULL)
-		return -EINVAL;
-
-	field = f->fmt.pix.field;
-	if (field == V4L2_FIELD_ANY)
-		b_any_field = 1;
-
-	dprintk(50, "%s NTSC: %d suggested width: %d, height: %d\n",
-		__func__, is_ntsc, f->fmt.pix.width, f->fmt.pix.height);
-	if (is_ntsc) {
-		/* NTSC */
-		if (f->fmt.pix.height >= NUM_LINES_1CIFS_NTSC * 2) {
-			f->fmt.pix.height = NUM_LINES_1CIFS_NTSC * 2;
-			if (b_any_field) {
-				field = V4L2_FIELD_SEQ_TB;
-			} else if (!((field == V4L2_FIELD_INTERLACED) ||
-				      (field == V4L2_FIELD_SEQ_TB) ||
-				      (field == V4L2_FIELD_INTERLACED_TB))) {
-				dprintk(1, "unsupported field setting\n");
-				return -EINVAL;
-			}
-		} else {
-			f->fmt.pix.height = NUM_LINES_1CIFS_NTSC;
-			if (b_any_field) {
-				field = V4L2_FIELD_TOP;
-			} else if (!((field == V4L2_FIELD_TOP) ||
-				      (field == V4L2_FIELD_BOTTOM))) {
-				dprintk(1, "unsupported field setting\n");
-				return -EINVAL;
-			}
-
-		}
-		if (f->fmt.pix.width >= LINE_SZ_4CIFS_NTSC)
-			f->fmt.pix.width = LINE_SZ_4CIFS_NTSC;
-		else if (f->fmt.pix.width >= LINE_SZ_2CIFS_NTSC)
-			f->fmt.pix.width = LINE_SZ_2CIFS_NTSC;
-		else if (f->fmt.pix.width >= LINE_SZ_1CIFS_NTSC)
-			f->fmt.pix.width = LINE_SZ_1CIFS_NTSC;
-		else
-			f->fmt.pix.width = LINE_SZ_1CIFS_NTSC;
-	} else {
-		/* PAL */
-		if (f->fmt.pix.height >= NUM_LINES_1CIFS_PAL * 2) {
-			f->fmt.pix.height = NUM_LINES_1CIFS_PAL * 2;
-			if (b_any_field) {
-				field = V4L2_FIELD_SEQ_TB;
-			} else if (!((field == V4L2_FIELD_INTERLACED) ||
-				      (field == V4L2_FIELD_SEQ_TB) ||
-				      (field == V4L2_FIELD_INTERLACED_TB))) {
-				dprintk(1, "unsupported field setting\n");
-				return -EINVAL;
-			}
-		} else {
-			f->fmt.pix.height = NUM_LINES_1CIFS_PAL;
-			if (b_any_field) {
-				field = V4L2_FIELD_TOP;
-			} else if (!((field == V4L2_FIELD_TOP) ||
-				     (field == V4L2_FIELD_BOTTOM))) {
-				dprintk(1, "unsupported field setting\n");
-				return -EINVAL;
-			}
-		}
-		if (f->fmt.pix.width >= LINE_SZ_4CIFS_PAL) {
-			f->fmt.pix.width = LINE_SZ_4CIFS_PAL;
-			field = V4L2_FIELD_SEQ_TB;
-		} else if (f->fmt.pix.width >= LINE_SZ_2CIFS_PAL) {
-			f->fmt.pix.width = LINE_SZ_2CIFS_PAL;
-			field = V4L2_FIELD_TOP;
-		} else if (f->fmt.pix.width >= LINE_SZ_1CIFS_PAL) {
-			f->fmt.pix.width = LINE_SZ_1CIFS_PAL;
-			field = V4L2_FIELD_TOP;
-		} else {
-			f->fmt.pix.width = LINE_SZ_1CIFS_PAL;
-			field = V4L2_FIELD_TOP;
-		}
-	}
-	f->fmt.pix.field = field;
-	f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
-	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
-	dprintk(50, "%s: set width %d height %d field %d\n", __func__,
-		f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
-	return 0;
-}
-
-static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
-			    struct v4l2_format *f)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-	const struct s2255_fmt *fmt;
-	struct videobuf_queue *q = &fh->vb_vidq;
-	struct s2255_mode mode;
-	int ret;
-
-	ret = vidioc_try_fmt_vid_cap(file, fh, f);
-
-	if (ret < 0)
-		return ret;
-
-	fmt = format_by_fourcc(f->fmt.pix.pixelformat);
-
-	if (fmt == NULL)
-		return -EINVAL;
-
-	mutex_lock(&q->vb_lock);
-
-	if (videobuf_queue_is_busy(&fh->vb_vidq)) {
-		dprintk(1, "queue busy\n");
-		ret = -EBUSY;
-		goto out_s_fmt;
-	}
-
-	if (res_locked(fh)) {
-		dprintk(1, "%s: channel busy\n", __func__);
-		ret = -EBUSY;
-		goto out_s_fmt;
-	}
-	mode = channel->mode;
-	channel->fmt = fmt;
-	channel->width = f->fmt.pix.width;
-	channel->height = f->fmt.pix.height;
-	fh->vb_vidq.field = f->fmt.pix.field;
-	fh->type = f->type;
-	if (channel->width > norm_minw(&channel->vdev)) {
-		if (channel->height > norm_minh(&channel->vdev)) {
-			if (channel->cap_parm.capturemode &
-			    V4L2_MODE_HIGHQUALITY)
-				mode.scale = SCALE_4CIFSI;
-			else
-				mode.scale = SCALE_4CIFS;
-		} else
-			mode.scale = SCALE_2CIFS;
-
-	} else {
-		mode.scale = SCALE_1CIFS;
-	}
-	/* color mode */
-	switch (channel->fmt->fourcc) {
-	case V4L2_PIX_FMT_GREY:
-		mode.color &= ~MASK_COLOR;
-		mode.color |= COLOR_Y8;
-		break;
-	case V4L2_PIX_FMT_JPEG:
-	case V4L2_PIX_FMT_MJPEG:
-		mode.color &= ~MASK_COLOR;
-		mode.color |= COLOR_JPG;
-		mode.color |= (channel->jc.quality << 8);
-		break;
-	case V4L2_PIX_FMT_YUV422P:
-		mode.color &= ~MASK_COLOR;
-		mode.color |= COLOR_YUVPL;
-		break;
-	case V4L2_PIX_FMT_YUYV:
-	case V4L2_PIX_FMT_UYVY:
-	default:
-		mode.color &= ~MASK_COLOR;
-		mode.color |= COLOR_YUVPK;
-		break;
-	}
-	if ((mode.color & MASK_COLOR) != (channel->mode.color & MASK_COLOR))
-		mode.restart = 1;
-	else if (mode.scale != channel->mode.scale)
-		mode.restart = 1;
-	else if (mode.format != channel->mode.format)
-		mode.restart = 1;
-	channel->mode = mode;
-	(void) s2255_set_mode(channel, &mode);
-	ret = 0;
-out_s_fmt:
-	mutex_unlock(&q->vb_lock);
-	return ret;
-}
-
-static int vidioc_reqbufs(struct file *file, void *priv,
-			  struct v4l2_requestbuffers *p)
-{
-	int rc;
-	struct s2255_fh *fh = priv;
-	rc = videobuf_reqbufs(&fh->vb_vidq, p);
-	return rc;
-}
-
-static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	int rc;
-	struct s2255_fh *fh = priv;
-	rc = videobuf_querybuf(&fh->vb_vidq, p);
-	return rc;
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	int rc;
-	struct s2255_fh *fh = priv;
-	rc = videobuf_qbuf(&fh->vb_vidq, p);
-	return rc;
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
-{
-	int rc;
-	struct s2255_fh *fh = priv;
-	rc = videobuf_dqbuf(&fh->vb_vidq, p, file->f_flags & O_NONBLOCK);
-	return rc;
-}
-
-/* write to the configuration pipe, synchronously */
-static int s2255_write_config(struct usb_device *udev, unsigned char *pbuf,
-			      int size)
-{
-	int pipe;
-	int done;
-	long retval = -1;
-	if (udev) {
-		pipe = usb_sndbulkpipe(udev, S2255_CONFIG_EP);
-		retval = usb_bulk_msg(udev, pipe, pbuf, size, &done, 500);
-	}
-	return retval;
-}
-
-static u32 get_transfer_size(struct s2255_mode *mode)
-{
-	int linesPerFrame = LINE_SZ_DEF;
-	int pixelsPerLine = NUM_LINES_DEF;
-	u32 outImageSize;
-	u32 usbInSize;
-	unsigned int mask_mult;
-
-	if (mode == NULL)
-		return 0;
-
-	if (mode->format == FORMAT_NTSC) {
-		switch (mode->scale) {
-		case SCALE_4CIFS:
-		case SCALE_4CIFSI:
-			linesPerFrame = NUM_LINES_4CIFS_NTSC * 2;
-			pixelsPerLine = LINE_SZ_4CIFS_NTSC;
-			break;
-		case SCALE_2CIFS:
-			linesPerFrame = NUM_LINES_2CIFS_NTSC;
-			pixelsPerLine = LINE_SZ_2CIFS_NTSC;
-			break;
-		case SCALE_1CIFS:
-			linesPerFrame = NUM_LINES_1CIFS_NTSC;
-			pixelsPerLine = LINE_SZ_1CIFS_NTSC;
-			break;
-		default:
-			break;
-		}
-	} else if (mode->format == FORMAT_PAL) {
-		switch (mode->scale) {
-		case SCALE_4CIFS:
-		case SCALE_4CIFSI:
-			linesPerFrame = NUM_LINES_4CIFS_PAL * 2;
-			pixelsPerLine = LINE_SZ_4CIFS_PAL;
-			break;
-		case SCALE_2CIFS:
-			linesPerFrame = NUM_LINES_2CIFS_PAL;
-			pixelsPerLine = LINE_SZ_2CIFS_PAL;
-			break;
-		case SCALE_1CIFS:
-			linesPerFrame = NUM_LINES_1CIFS_PAL;
-			pixelsPerLine = LINE_SZ_1CIFS_PAL;
-			break;
-		default:
-			break;
-		}
-	}
-	outImageSize = linesPerFrame * pixelsPerLine;
-	if ((mode->color & MASK_COLOR) != COLOR_Y8) {
-		/* 2 bytes/pixel if not monochrome */
-		outImageSize *= 2;
-	}
-
-	/* total bytes to send including prefix and 4K padding;
-	   must be a multiple of USB_READ_SIZE */
-	usbInSize = outImageSize + PREFIX_SIZE;	/* always send prefix */
-	mask_mult = 0xffffffffUL - DEF_USB_BLOCK + 1;
-	/* if size not a multiple of USB_READ_SIZE */
-	if (usbInSize & ~mask_mult)
-		usbInSize = (usbInSize & mask_mult) + (DEF_USB_BLOCK);
-	return usbInSize;
-}
-
-static void s2255_print_cfg(struct s2255_dev *sdev, struct s2255_mode *mode)
-{
-	struct device *dev = &sdev->udev->dev;
-	dev_info(dev, "------------------------------------------------\n");
-	dev_info(dev, "format: %d\nscale %d\n", mode->format, mode->scale);
-	dev_info(dev, "fdec: %d\ncolor %d\n", mode->fdec, mode->color);
-	dev_info(dev, "bright: 0x%x\n", mode->bright);
-	dev_info(dev, "------------------------------------------------\n");
-}
-
-/*
- * set mode is the function which controls the DSP.
- * the restart parameter in struct s2255_mode should be set whenever
- * the image size could change via color format, video system or image
- * size.
- * When the restart parameter is set, we sleep for ONE frame to allow the
- * DSP time to get the new frame
- */
-static int s2255_set_mode(struct s2255_channel *channel,
-			  struct s2255_mode *mode)
-{
-	int res;
-	__le32 *buffer;
-	unsigned long chn_rev;
-	struct s2255_dev *dev = to_s2255_dev(channel->vdev.v4l2_dev);
-	chn_rev = G_chnmap[channel->idx];
-	dprintk(3, "%s channel: %d\n", __func__, channel->idx);
-	/* if JPEG, set the quality */
-	if ((mode->color & MASK_COLOR) == COLOR_JPG) {
-		mode->color &= ~MASK_COLOR;
-		mode->color |= COLOR_JPG;
-		mode->color &= ~MASK_JPG_QUALITY;
-		mode->color |= (channel->jc.quality << 8);
-	}
-	/* save the mode */
-	channel->mode = *mode;
-	channel->req_image_size = get_transfer_size(mode);
-	dprintk(1, "%s: reqsize %ld\n", __func__, channel->req_image_size);
-	buffer = kzalloc(512, GFP_KERNEL);
-	if (buffer == NULL) {
-		dev_err(&dev->udev->dev, "out of mem\n");
-		return -ENOMEM;
-	}
-	/* set the mode */
-	buffer[0] = IN_DATA_TOKEN;
-	buffer[1] = (__le32) cpu_to_le32(chn_rev);
-	buffer[2] = CMD_SET_MODE;
-	memcpy(&buffer[3], &channel->mode, sizeof(struct s2255_mode));
-	channel->setmode_ready = 0;
-	res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
-	if (debug)
-		s2255_print_cfg(dev, mode);
-	kfree(buffer);
-	/* wait at least 3 frames before continuing */
-	if (mode->restart) {
-		wait_event_timeout(channel->wait_setmode,
-				   (channel->setmode_ready != 0),
-				   msecs_to_jiffies(S2255_SETMODE_TIMEOUT));
-		if (channel->setmode_ready != 1) {
-			printk(KERN_DEBUG "s2255: no set mode response\n");
-			res = -EFAULT;
-		}
-	}
-	/* clear the restart flag */
-	channel->mode.restart = 0;
-	dprintk(1, "%s chn %d, result: %d\n", __func__, channel->idx, res);
-	return res;
-}
-
-static int s2255_cmd_status(struct s2255_channel *channel, u32 *pstatus)
-{
-	int res;
-	__le32 *buffer;
-	u32 chn_rev;
-	struct s2255_dev *dev = to_s2255_dev(channel->vdev.v4l2_dev);
-	chn_rev = G_chnmap[channel->idx];
-	dprintk(4, "%s chan %d\n", __func__, channel->idx);
-	buffer = kzalloc(512, GFP_KERNEL);
-	if (buffer == NULL) {
-		dev_err(&dev->udev->dev, "out of mem\n");
-		return -ENOMEM;
-	}
-	/* form the get vid status command */
-	buffer[0] = IN_DATA_TOKEN;
-	buffer[1] = (__le32) cpu_to_le32(chn_rev);
-	buffer[2] = CMD_STATUS;
-	*pstatus = 0;
-	channel->vidstatus_ready = 0;
-	res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
-	kfree(buffer);
-	wait_event_timeout(channel->wait_vidstatus,
-			   (channel->vidstatus_ready != 0),
-			   msecs_to_jiffies(S2255_VIDSTATUS_TIMEOUT));
-	if (channel->vidstatus_ready != 1) {
-		printk(KERN_DEBUG "s2255: no vidstatus response\n");
-		res = -EFAULT;
-	}
-	*pstatus = channel->vidstatus;
-	dprintk(4, "%s, vid status %d\n", __func__, *pstatus);
-	return res;
-}
-
-static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
-{
-	int res;
-	struct s2255_fh *fh = priv;
-	struct s2255_dev *dev = fh->dev;
-	struct s2255_channel *channel = fh->channel;
-	int j;
-	dprintk(4, "%s\n", __func__);
-	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-		dev_err(&dev->udev->dev, "invalid fh type0\n");
-		return -EINVAL;
-	}
-	if (i != fh->type) {
-		dev_err(&dev->udev->dev, "invalid fh type1\n");
-		return -EINVAL;
-	}
-
-	if (!res_get(fh)) {
-		s2255_dev_err(&dev->udev->dev, "stream busy\n");
-		return -EBUSY;
-	}
-	channel->last_frame = -1;
-	channel->bad_payload = 0;
-	channel->cur_frame = 0;
-	channel->frame_count = 0;
-	for (j = 0; j < SYS_FRAMES; j++) {
-		channel->buffer.frame[j].ulState = S2255_READ_IDLE;
-		channel->buffer.frame[j].cur_size = 0;
-	}
-	res = videobuf_streamon(&fh->vb_vidq);
-	if (res == 0) {
-		s2255_start_acquire(channel);
-		channel->b_acquire = 1;
-	} else
-		res_free(fh);
-
-	return res;
-}
-
-static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
-{
-	struct s2255_fh *fh = priv;
-	dprintk(4, "%s\n, channel: %d", __func__, fh->channel->idx);
-	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
-		printk(KERN_ERR "invalid fh type0\n");
-		return -EINVAL;
-	}
-	if (i != fh->type) {
-		printk(KERN_ERR "invalid type i\n");
-		return -EINVAL;
-	}
-	s2255_stop_acquire(fh->channel);
-	videobuf_streamoff(&fh->vb_vidq);
-	res_free(fh);
-	return 0;
-}
-
-static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *i)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_mode mode;
-	struct videobuf_queue *q = &fh->vb_vidq;
-	int ret = 0;
-	mutex_lock(&q->vb_lock);
-	if (videobuf_queue_is_busy(q)) {
-		dprintk(1, "queue busy\n");
-		ret = -EBUSY;
-		goto out_s_std;
-	}
-	if (res_locked(fh)) {
-		dprintk(1, "can't change standard after started\n");
-		ret = -EBUSY;
-		goto out_s_std;
-	}
-	mode = fh->channel->mode;
-	if (*i & V4L2_STD_NTSC) {
-		dprintk(4, "%s NTSC\n", __func__);
-		/* if changing format, reset frame decimation/intervals */
-		if (mode.format != FORMAT_NTSC) {
-			mode.restart = 1;
-			mode.format = FORMAT_NTSC;
-			mode.fdec = FDEC_1;
-		}
-	} else if (*i & V4L2_STD_PAL) {
-		dprintk(4, "%s PAL\n", __func__);
-		if (mode.format != FORMAT_PAL) {
-			mode.restart = 1;
-			mode.format = FORMAT_PAL;
-			mode.fdec = FDEC_1;
-		}
-	} else {
-		ret = -EINVAL;
-	}
-	if (mode.restart)
-		s2255_set_mode(fh->channel, &mode);
-out_s_std:
-	mutex_unlock(&q->vb_lock);
-	return ret;
-}
-
-/* Sensoray 2255 is a multiple channel capture device.
-   It does not have a "crossbar" of inputs.
-   We use one V4L device per channel. The user must
-   be aware that certain combinations are not allowed.
-   For instance, you cannot do full FPS on more than 2 channels(2 videodevs)
-   at once in color(you can do full fps on 4 channels with greyscale.
-*/
-static int vidioc_enum_input(struct file *file, void *priv,
-			     struct v4l2_input *inp)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_dev *dev = fh->dev;
-	struct s2255_channel *channel = fh->channel;
-	u32 status = 0;
-	if (inp->index != 0)
-		return -EINVAL;
-	inp->type = V4L2_INPUT_TYPE_CAMERA;
-	inp->std = S2255_NORMS;
-	inp->status = 0;
-	if (dev->dsp_fw_ver >= S2255_MIN_DSP_STATUS) {
-		int rc;
-		rc = s2255_cmd_status(fh->channel, &status);
-		dprintk(4, "s2255_cmd_status rc: %d status %x\n", rc, status);
-		if (rc == 0)
-			inp->status =  (status & 0x01) ? 0
-				: V4L2_IN_ST_NO_SIGNAL;
-	}
-	switch (dev->pid) {
-	case 0x2255:
-	default:
-		strlcpy(inp->name, "Composite", sizeof(inp->name));
-		break;
-	case 0x2257:
-		strlcpy(inp->name, (channel->idx < 2) ? "Composite" : "S-Video",
-			sizeof(inp->name));
-		break;
-	}
-	return 0;
-}
-
-static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
-{
-	*i = 0;
-	return 0;
-}
-static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
-{
-	if (i > 0)
-		return -EINVAL;
-	return 0;
-}
-
-/* --- controls ---------------------------------------------- */
-static int vidioc_queryctrl(struct file *file, void *priv,
-			    struct v4l2_queryctrl *qc)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-	struct s2255_dev *dev = fh->dev;
-	switch (qc->id) {
-	case V4L2_CID_BRIGHTNESS:
-		v4l2_ctrl_query_fill(qc, -127, 127, 1, DEF_BRIGHT);
-		break;
-	case V4L2_CID_CONTRAST:
-		v4l2_ctrl_query_fill(qc, 0, 255, 1, DEF_CONTRAST);
-		break;
-	case V4L2_CID_SATURATION:
-		v4l2_ctrl_query_fill(qc, 0, 255, 1, DEF_SATURATION);
-		break;
-	case V4L2_CID_HUE:
-		v4l2_ctrl_query_fill(qc, 0, 255, 1, DEF_HUE);
-		break;
-	case V4L2_CID_PRIVATE_COLORFILTER:
-		if (dev->dsp_fw_ver < S2255_MIN_DSP_COLORFILTER)
-			return -EINVAL;
-		if ((dev->pid == 0x2257) && (channel->idx > 1))
-			return -EINVAL;
-		strlcpy(qc->name, "Color Filter", sizeof(qc->name));
-		qc->type = V4L2_CTRL_TYPE_MENU;
-		qc->minimum = 0;
-		qc->maximum = 1;
-		qc->step = 1;
-		qc->default_value = 1;
-		qc->flags = 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-	dprintk(4, "%s, id %d\n", __func__, qc->id);
-	return 0;
-}
-
-static int vidioc_g_ctrl(struct file *file, void *priv,
-			 struct v4l2_control *ctrl)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_dev *dev = fh->dev;
-	struct s2255_channel *channel = fh->channel;
-	switch (ctrl->id) {
-	case V4L2_CID_BRIGHTNESS:
-		ctrl->value = channel->mode.bright;
-		break;
-	case V4L2_CID_CONTRAST:
-		ctrl->value = channel->mode.contrast;
-		break;
-	case V4L2_CID_SATURATION:
-		ctrl->value = channel->mode.saturation;
-		break;
-	case V4L2_CID_HUE:
-		ctrl->value = channel->mode.hue;
-		break;
-	case V4L2_CID_PRIVATE_COLORFILTER:
-		if (dev->dsp_fw_ver < S2255_MIN_DSP_COLORFILTER)
-			return -EINVAL;
-		if ((dev->pid == 0x2257) && (channel->idx > 1))
-			return -EINVAL;
-		ctrl->value = !((channel->mode.color & MASK_INPUT_TYPE) >> 16);
-		break;
-	default:
-		return -EINVAL;
-	}
-	dprintk(4, "%s, id %d val %d\n", __func__, ctrl->id, ctrl->value);
-	return 0;
-}
-
-static int vidioc_s_ctrl(struct file *file, void *priv,
-			 struct v4l2_control *ctrl)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-	struct s2255_dev *dev = to_s2255_dev(channel->vdev.v4l2_dev);
-	struct s2255_mode mode;
-	mode = channel->mode;
-	dprintk(4, "%s\n", __func__);
-	/* update the mode to the corresponding value */
-	switch (ctrl->id) {
-	case V4L2_CID_BRIGHTNESS:
-		mode.bright = ctrl->value;
-		break;
-	case V4L2_CID_CONTRAST:
-		mode.contrast = ctrl->value;
-		break;
-	case V4L2_CID_HUE:
-		mode.hue = ctrl->value;
-		break;
-	case V4L2_CID_SATURATION:
-		mode.saturation = ctrl->value;
-		break;
-	case V4L2_CID_PRIVATE_COLORFILTER:
-		if (dev->dsp_fw_ver < S2255_MIN_DSP_COLORFILTER)
-			return -EINVAL;
-		if ((dev->pid == 0x2257) && (channel->idx > 1))
-			return -EINVAL;
-		mode.color &= ~MASK_INPUT_TYPE;
-		mode.color |= ((ctrl->value ? 0 : 1) << 16);
-		break;
-	default:
-		return -EINVAL;
-	}
-	mode.restart = 0;
-	/* set mode here.  Note: stream does not need restarted.
-	   some V4L programs restart stream unnecessarily
-	   after a s_crtl.
-	*/
-	s2255_set_mode(fh->channel, &mode);
-	return 0;
-}
-
-static int vidioc_g_jpegcomp(struct file *file, void *priv,
-			 struct v4l2_jpegcompression *jc)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-	*jc = channel->jc;
-	dprintk(2, "%s: quality %d\n", __func__, jc->quality);
-	return 0;
-}
-
-static int vidioc_s_jpegcomp(struct file *file, void *priv,
-			 struct v4l2_jpegcompression *jc)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-	if (jc->quality < 0 || jc->quality > 100)
-		return -EINVAL;
-	channel->jc.quality = jc->quality;
-	dprintk(2, "%s: quality %d\n", __func__, jc->quality);
-	return 0;
-}
-
-static int vidioc_g_parm(struct file *file, void *priv,
-			 struct v4l2_streamparm *sp)
-{
-	struct s2255_fh *fh = priv;
-	__u32 def_num, def_dem;
-	struct s2255_channel *channel = fh->channel;
-	if (sp->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-	memset(sp, 0, sizeof(struct v4l2_streamparm));
-	sp->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
-	sp->parm.capture.capturemode = channel->cap_parm.capturemode;
-	def_num = (channel->mode.format == FORMAT_NTSC) ? 1001 : 1000;
-	def_dem = (channel->mode.format == FORMAT_NTSC) ? 30000 : 25000;
-	sp->parm.capture.timeperframe.denominator = def_dem;
-	switch (channel->mode.fdec) {
-	default:
-	case FDEC_1:
-		sp->parm.capture.timeperframe.numerator = def_num;
-		break;
-	case FDEC_2:
-		sp->parm.capture.timeperframe.numerator = def_num * 2;
-		break;
-	case FDEC_3:
-		sp->parm.capture.timeperframe.numerator = def_num * 3;
-		break;
-	case FDEC_5:
-		sp->parm.capture.timeperframe.numerator = def_num * 5;
-		break;
-	}
-	dprintk(4, "%s capture mode, %d timeperframe %d/%d\n", __func__,
-		sp->parm.capture.capturemode,
-		sp->parm.capture.timeperframe.numerator,
-		sp->parm.capture.timeperframe.denominator);
-	return 0;
-}
-
-static int vidioc_s_parm(struct file *file, void *priv,
-			 struct v4l2_streamparm *sp)
-{
-	struct s2255_fh *fh = priv;
-	struct s2255_channel *channel = fh->channel;
-	struct s2255_mode mode;
-	int fdec = FDEC_1;
-	__u32 def_num, def_dem;
-	if (sp->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-	mode = channel->mode;
-	/* high quality capture mode requires a stream restart */
-	if (channel->cap_parm.capturemode
-	    != sp->parm.capture.capturemode && res_locked(fh))
-		return -EBUSY;
-	def_num = (mode.format == FORMAT_NTSC) ? 1001 : 1000;
-	def_dem = (mode.format == FORMAT_NTSC) ? 30000 : 25000;
-	if (def_dem != sp->parm.capture.timeperframe.denominator)
-		sp->parm.capture.timeperframe.numerator = def_num;
-	else if (sp->parm.capture.timeperframe.numerator <= def_num)
-		sp->parm.capture.timeperframe.numerator = def_num;
-	else if (sp->parm.capture.timeperframe.numerator <= (def_num * 2)) {
-		sp->parm.capture.timeperframe.numerator = def_num * 2;
-		fdec = FDEC_2;
-	} else if (sp->parm.capture.timeperframe.numerator <= (def_num * 3)) {
-		sp->parm.capture.timeperframe.numerator = def_num * 3;
-		fdec = FDEC_3;
-	} else {
-		sp->parm.capture.timeperframe.numerator = def_num * 5;
-		fdec = FDEC_5;
-	}
-	mode.fdec = fdec;
-	sp->parm.capture.timeperframe.denominator = def_dem;
-	s2255_set_mode(channel, &mode);
-	dprintk(4, "%s capture mode, %d timeperframe %d/%d, fdec %d\n",
-		__func__,
-		sp->parm.capture.capturemode,
-		sp->parm.capture.timeperframe.numerator,
-		sp->parm.capture.timeperframe.denominator, fdec);
-	return 0;
-}
-
-static int vidioc_enum_frameintervals(struct file *file, void *priv,
-			    struct v4l2_frmivalenum *fe)
-{
-	int is_ntsc = 0;
-#define NUM_FRAME_ENUMS 4
-	int frm_dec[NUM_FRAME_ENUMS] = {1, 2, 3, 5};
-	if (fe->index < 0 || fe->index >= NUM_FRAME_ENUMS)
-		return -EINVAL;
-	switch (fe->width) {
-	case 640:
-		if (fe->height != 240 && fe->height != 480)
-			return -EINVAL;
-		is_ntsc = 1;
-		break;
-	case 320:
-		if (fe->height != 240)
-			return -EINVAL;
-		is_ntsc = 1;
-		break;
-	case 704:
-		if (fe->height != 288 && fe->height != 576)
-			return -EINVAL;
-		break;
-	case 352:
-		if (fe->height != 288)
-			return -EINVAL;
-		break;
-	default:
-		return -EINVAL;
-	}
-	fe->type = V4L2_FRMIVAL_TYPE_DISCRETE;
-	fe->discrete.denominator = is_ntsc ? 30000 : 25000;
-	fe->discrete.numerator = (is_ntsc ? 1001 : 1000) * frm_dec[fe->index];
-	dprintk(4, "%s discrete %d/%d\n", __func__, fe->discrete.numerator,
-		fe->discrete.denominator);
-	return 0;
-}
-
-static int __s2255_open(struct file *file)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct s2255_channel *channel = video_drvdata(file);
-	struct s2255_dev *dev = to_s2255_dev(vdev->v4l2_dev);
-	struct s2255_fh *fh;
-	enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	int state;
-	dprintk(1, "s2255: open called (dev=%s)\n",
-		video_device_node_name(vdev));
-	state = atomic_read(&dev->fw_data->fw_state);
-	switch (state) {
-	case S2255_FW_DISCONNECTING:
-		return -ENODEV;
-	case S2255_FW_FAILED:
-		s2255_dev_err(&dev->udev->dev,
-			"firmware load failed. retrying.\n");
-		s2255_fwload_start(dev, 1);
-		wait_event_timeout(dev->fw_data->wait_fw,
-				   ((atomic_read(&dev->fw_data->fw_state)
-				     == S2255_FW_SUCCESS) ||
-				    (atomic_read(&dev->fw_data->fw_state)
-				     == S2255_FW_DISCONNECTING)),
-				   msecs_to_jiffies(S2255_LOAD_TIMEOUT));
-		/* state may have changed, re-read */
-		state = atomic_read(&dev->fw_data->fw_state);
-		break;
-	case S2255_FW_NOTLOADED:
-	case S2255_FW_LOADED_DSPWAIT:
-		/* give S2255_LOAD_TIMEOUT time for firmware to load in case
-		   driver loaded and then device immediately opened */
-		printk(KERN_INFO "%s waiting for firmware load\n", __func__);
-		wait_event_timeout(dev->fw_data->wait_fw,
-				   ((atomic_read(&dev->fw_data->fw_state)
-				     == S2255_FW_SUCCESS) ||
-				    (atomic_read(&dev->fw_data->fw_state)
-				     == S2255_FW_DISCONNECTING)),
-				   msecs_to_jiffies(S2255_LOAD_TIMEOUT));
-		/* state may have changed, re-read */
-		state = atomic_read(&dev->fw_data->fw_state);
-		break;
-	case S2255_FW_SUCCESS:
-	default:
-		break;
-	}
-	/* state may have changed in above switch statement */
-	switch (state) {
-	case S2255_FW_SUCCESS:
-		break;
-	case S2255_FW_FAILED:
-		printk(KERN_INFO "2255 firmware load failed.\n");
-		return -ENODEV;
-	case S2255_FW_DISCONNECTING:
-		printk(KERN_INFO "%s: disconnecting\n", __func__);
-		return -ENODEV;
-	case S2255_FW_LOADED_DSPWAIT:
-	case S2255_FW_NOTLOADED:
-		printk(KERN_INFO "%s: firmware not loaded yet"
-		       "please try again later\n",
-		       __func__);
-		/*
-		 * Timeout on firmware load means device unusable.
-		 * Set firmware failure state.
-		 * On next s2255_open the firmware will be reloaded.
-		 */
-		atomic_set(&dev->fw_data->fw_state,
-			   S2255_FW_FAILED);
-		return -EAGAIN;
-	default:
-		printk(KERN_INFO "%s: unknown state\n", __func__);
-		return -EFAULT;
-	}
-	/* allocate + initialize per filehandle data */
-	fh = kzalloc(sizeof(*fh), GFP_KERNEL);
-	if (NULL == fh)
-		return -ENOMEM;
-	file->private_data = fh;
-	fh->dev = dev;
-	fh->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	fh->channel = channel;
-	if (!channel->configured) {
-		/* configure channel to default state */
-		channel->fmt = &formats[0];
-		s2255_set_mode(channel, &channel->mode);
-		channel->configured = 1;
-	}
-	dprintk(1, "%s: dev=%s type=%s\n", __func__,
-		video_device_node_name(vdev), v4l2_type_names[type]);
-	dprintk(2, "%s: fh=0x%08lx, dev=0x%08lx, vidq=0x%08lx\n", __func__,
-		(unsigned long)fh, (unsigned long)dev,
-		(unsigned long)&channel->vidq);
-	dprintk(4, "%s: list_empty active=%d\n", __func__,
-		list_empty(&channel->vidq.active));
-	videobuf_queue_vmalloc_init(&fh->vb_vidq, &s2255_video_qops,
-				    NULL, &dev->slock,
-				    fh->type,
-				    V4L2_FIELD_INTERLACED,
-				    sizeof(struct s2255_buffer),
-				    fh, vdev->lock);
-	return 0;
-}
-
-static int s2255_open(struct file *file)
-{
-	struct video_device *vdev = video_devdata(file);
-	int ret;
-
-	if (mutex_lock_interruptible(vdev->lock))
-		return -ERESTARTSYS;
-	ret = __s2255_open(file);
-	mutex_unlock(vdev->lock);
-	return ret;
-}
-
-static unsigned int s2255_poll(struct file *file,
-			       struct poll_table_struct *wait)
-{
-	struct s2255_fh *fh = file->private_data;
-	struct s2255_dev *dev = fh->dev;
-	int rc;
-	dprintk(100, "%s\n", __func__);
-	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)
-		return POLLERR;
-	mutex_lock(&dev->lock);
-	rc = videobuf_poll_stream(file, &fh->vb_vidq, wait);
-	mutex_unlock(&dev->lock);
-	return rc;
-}
-
-static void s2255_destroy(struct s2255_dev *dev)
-{
-	/* board shutdown stops the read pipe if it is running */
-	s2255_board_shutdown(dev);
-	/* make sure firmware still not trying to load */
-	del_timer(&dev->timer);  /* only started in .probe and .open */
-	if (dev->fw_data->fw_urb) {
-		usb_kill_urb(dev->fw_data->fw_urb);
-		usb_free_urb(dev->fw_data->fw_urb);
-		dev->fw_data->fw_urb = NULL;
-	}
-	release_firmware(dev->fw_data->fw);
-	kfree(dev->fw_data->pfw_data);
-	kfree(dev->fw_data);
-	/* reset the DSP so firmware can be reloaded next time */
-	s2255_reset_dsppower(dev);
-	mutex_destroy(&dev->lock);
-	usb_put_dev(dev->udev);
-	v4l2_device_unregister(&dev->v4l2_dev);
-	dprintk(1, "%s", __func__);
-	kfree(dev);
-}
-
-static int s2255_release(struct file *file)
-{
-	struct s2255_fh *fh = file->private_data;
-	struct s2255_dev *dev = fh->dev;
-	struct video_device *vdev = video_devdata(file);
-	struct s2255_channel *channel = fh->channel;
-	if (!dev)
-		return -ENODEV;
-	mutex_lock(&dev->lock);
-	/* turn off stream */
-	if (res_check(fh)) {
-		if (channel->b_acquire)
-			s2255_stop_acquire(fh->channel);
-		videobuf_streamoff(&fh->vb_vidq);
-		res_free(fh);
-	}
-	videobuf_mmap_free(&fh->vb_vidq);
-	mutex_unlock(&dev->lock);
-	dprintk(1, "%s (dev=%s)\n", __func__, video_device_node_name(vdev));
-	kfree(fh);
-	return 0;
-}
-
-static int s2255_mmap_v4l(struct file *file, struct vm_area_struct *vma)
-{
-	struct s2255_fh *fh = file->private_data;
-	struct s2255_dev *dev = fh->dev;
-	int ret;
-
-	if (!fh)
-		return -ENODEV;
-	dprintk(4, "%s, vma=0x%08lx\n", __func__, (unsigned long)vma);
-	if (mutex_lock_interruptible(&dev->lock))
-		return -ERESTARTSYS;
-	ret = videobuf_mmap_mapper(&fh->vb_vidq, vma);
-	mutex_unlock(&dev->lock);
-	dprintk(4, "%s vma start=0x%08lx, size=%ld, ret=%d\n", __func__,
-		(unsigned long)vma->vm_start,
-		(unsigned long)vma->vm_end - (unsigned long)vma->vm_start, ret);
-	return ret;
-}
-
-static const struct v4l2_file_operations s2255_fops_v4l = {
-	.owner = THIS_MODULE,
-	.open = s2255_open,
-	.release = s2255_release,
-	.poll = s2255_poll,
-	.unlocked_ioctl = video_ioctl2,	/* V4L2 ioctl handler */
-	.mmap = s2255_mmap_v4l,
-};
-
-static const struct v4l2_ioctl_ops s2255_ioctl_ops = {
-	.vidioc_querymenu = vidioc_querymenu,
-	.vidioc_querycap = vidioc_querycap,
-	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
-	.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
-	.vidioc_reqbufs = vidioc_reqbufs,
-	.vidioc_querybuf = vidioc_querybuf,
-	.vidioc_qbuf = vidioc_qbuf,
-	.vidioc_dqbuf = vidioc_dqbuf,
-	.vidioc_s_std = vidioc_s_std,
-	.vidioc_enum_input = vidioc_enum_input,
-	.vidioc_g_input = vidioc_g_input,
-	.vidioc_s_input = vidioc_s_input,
-	.vidioc_queryctrl = vidioc_queryctrl,
-	.vidioc_g_ctrl = vidioc_g_ctrl,
-	.vidioc_s_ctrl = vidioc_s_ctrl,
-	.vidioc_streamon = vidioc_streamon,
-	.vidioc_streamoff = vidioc_streamoff,
-	.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
-	.vidioc_g_jpegcomp = vidioc_g_jpegcomp,
-	.vidioc_s_parm = vidioc_s_parm,
-	.vidioc_g_parm = vidioc_g_parm,
-	.vidioc_enum_frameintervals = vidioc_enum_frameintervals,
-};
-
-static void s2255_video_device_release(struct video_device *vdev)
-{
-	struct s2255_dev *dev = to_s2255_dev(vdev->v4l2_dev);
-	dprintk(4, "%s, chnls: %d \n", __func__,
-		atomic_read(&dev->num_channels));
-	if (atomic_dec_and_test(&dev->num_channels))
-		s2255_destroy(dev);
-	return;
-}
-
-static struct video_device template = {
-	.name = "s2255v",
-	.fops = &s2255_fops_v4l,
-	.ioctl_ops = &s2255_ioctl_ops,
-	.release = s2255_video_device_release,
-	.tvnorms = S2255_NORMS,
-	.current_norm = V4L2_STD_NTSC_M,
-};
-
-static int s2255_probe_v4l(struct s2255_dev *dev)
-{
-	int ret;
-	int i;
-	int cur_nr = video_nr;
-	struct s2255_channel *channel;
-	ret = v4l2_device_register(&dev->interface->dev, &dev->v4l2_dev);
-	if (ret)
-		return ret;
-	/* initialize all video 4 linux */
-	/* register 4 video devices */
-	for (i = 0; i < MAX_CHANNELS; i++) {
-		channel = &dev->channel[i];
-		INIT_LIST_HEAD(&channel->vidq.active);
-		channel->vidq.dev = dev;
-		/* register 4 video devices */
-		channel->vdev = template;
-		channel->vdev.lock = &dev->lock;
-		channel->vdev.v4l2_dev = &dev->v4l2_dev;
-		video_set_drvdata(&channel->vdev, channel);
-		if (video_nr == -1)
-			ret = video_register_device(&channel->vdev,
-						    VFL_TYPE_GRABBER,
-						    video_nr);
-		else
-			ret = video_register_device(&channel->vdev,
-						    VFL_TYPE_GRABBER,
-						    cur_nr + i);
-
-		if (ret) {
-			dev_err(&dev->udev->dev,
-				"failed to register video device!\n");
-			break;
-		}
-		atomic_inc(&dev->num_channels);
-		v4l2_info(&dev->v4l2_dev, "V4L2 device registered as %s\n",
-			  video_device_node_name(&channel->vdev));
-
-	}
-	printk(KERN_INFO "Sensoray 2255 V4L driver Revision: %s\n",
-	       S2255_VERSION);
-	/* if no channels registered, return error and probe will fail*/
-	if (atomic_read(&dev->num_channels) == 0) {
-		v4l2_device_unregister(&dev->v4l2_dev);
-		return ret;
-	}
-	if (atomic_read(&dev->num_channels) != MAX_CHANNELS)
-		printk(KERN_WARNING "s2255: Not all channels available.\n");
-	return 0;
-}
-
-/* this function moves the usb stream read pipe data
- * into the system buffers.
- * returns 0 on success, EAGAIN if more data to process( call this
- * function again).
- *
- * Received frame structure:
- * bytes 0-3:  marker : 0x2255DA4AL (S2255_MARKER_FRAME)
- * bytes 4-7:  channel: 0-3
- * bytes 8-11: payload size:  size of the frame
- * bytes 12-payloadsize+12:  frame data
- */
-static int save_frame(struct s2255_dev *dev, struct s2255_pipeinfo *pipe_info)
-{
-	char *pdest;
-	u32 offset = 0;
-	int bframe = 0;
-	char *psrc;
-	unsigned long copy_size;
-	unsigned long size;
-	s32 idx = -1;
-	struct s2255_framei *frm;
-	unsigned char *pdata;
-	struct s2255_channel *channel;
-	dprintk(100, "buffer to user\n");
-	channel = &dev->channel[dev->cc];
-	idx = channel->cur_frame;
-	frm = &channel->buffer.frame[idx];
-	if (frm->ulState == S2255_READ_IDLE) {
-		int jj;
-		unsigned int cc;
-		__le32 *pdword; /*data from dsp is little endian */
-		int payload;
-		/* search for marker codes */
-		pdata = (unsigned char *)pipe_info->transfer_buffer;
-		pdword = (__le32 *)pdata;
-		for (jj = 0; jj < (pipe_info->cur_transfer_size - 12); jj++) {
-			switch (*pdword) {
-			case S2255_MARKER_FRAME:
-				dprintk(4, "found frame marker at offset:"
-					" %d [%x %x]\n", jj, pdata[0],
-					pdata[1]);
-				offset = jj + PREFIX_SIZE;
-				bframe = 1;
-				cc = le32_to_cpu(pdword[1]);
-				if (cc >= MAX_CHANNELS) {
-					printk(KERN_ERR
-					       "bad channel\n");
-					return -EINVAL;
-				}
-				/* reverse it */
-				dev->cc = G_chnmap[cc];
-				channel = &dev->channel[dev->cc];
-				payload =  le32_to_cpu(pdword[3]);
-				if (payload > channel->req_image_size) {
-					channel->bad_payload++;
-					/* discard the bad frame */
-					return -EINVAL;
-				}
-				channel->pkt_size = payload;
-				channel->jpg_size = le32_to_cpu(pdword[4]);
-				break;
-			case S2255_MARKER_RESPONSE:
-
-				pdata += DEF_USB_BLOCK;
-				jj += DEF_USB_BLOCK;
-				if (le32_to_cpu(pdword[1]) >= MAX_CHANNELS)
-					break;
-				cc = G_chnmap[le32_to_cpu(pdword[1])];
-				if (cc >= MAX_CHANNELS)
-					break;
-				channel = &dev->channel[cc];
-				switch (pdword[2]) {
-				case S2255_RESPONSE_SETMODE:
-					/* check if channel valid */
-					/* set mode ready */
-					channel->setmode_ready = 1;
-					wake_up(&channel->wait_setmode);
-					dprintk(5, "setmode ready %d\n", cc);
-					break;
-				case S2255_RESPONSE_FW:
-					dev->chn_ready |= (1 << cc);
-					if ((dev->chn_ready & 0x0f) != 0x0f)
-						break;
-					/* all channels ready */
-					printk(KERN_INFO "s2255: fw loaded\n");
-					atomic_set(&dev->fw_data->fw_state,
-						   S2255_FW_SUCCESS);
-					wake_up(&dev->fw_data->wait_fw);
-					break;
-				case S2255_RESPONSE_STATUS:
-					channel->vidstatus = le32_to_cpu(pdword[3]);
-					channel->vidstatus_ready = 1;
-					wake_up(&channel->wait_vidstatus);
-					dprintk(5, "got vidstatus %x chan %d\n",
-						le32_to_cpu(pdword[3]), cc);
-					break;
-				default:
-					printk(KERN_INFO "s2255 unknown resp\n");
-				}
-			default:
-				pdata++;
-				break;
-			}
-			if (bframe)
-				break;
-		} /* for */
-		if (!bframe)
-			return -EINVAL;
-	}
-	channel = &dev->channel[dev->cc];
-	idx = channel->cur_frame;
-	frm = &channel->buffer.frame[idx];
-	/* search done.  now find out if should be acquiring on this channel */
-	if (!channel->b_acquire) {
-		/* we found a frame, but this channel is turned off */
-		frm->ulState = S2255_READ_IDLE;
-		return -EINVAL;
-	}
-
-	if (frm->ulState == S2255_READ_IDLE) {
-		frm->ulState = S2255_READ_FRAME;
-		frm->cur_size = 0;
-	}
-
-	/* skip the marker 512 bytes (and offset if out of sync) */
-	psrc = (u8 *)pipe_info->transfer_buffer + offset;
-
-
-	if (frm->lpvbits == NULL) {
-		dprintk(1, "s2255 frame buffer == NULL.%p %p %d %d",
-			frm, dev, dev->cc, idx);
-		return -ENOMEM;
-	}
-
-	pdest = frm->lpvbits + frm->cur_size;
-
-	copy_size = (pipe_info->cur_transfer_size - offset);
-
-	size = channel->pkt_size - PREFIX_SIZE;
-
-	/* sanity check on pdest */
-	if ((copy_size + frm->cur_size) < channel->req_image_size)
-		memcpy(pdest, psrc, copy_size);
-
-	frm->cur_size += copy_size;
-	dprintk(4, "cur_size size %lu size %lu \n", frm->cur_size, size);
-
-	if (frm->cur_size >= size) {
-		dprintk(2, "****************[%d]Buffer[%d]full*************\n",
-			dev->cc, idx);
-		channel->last_frame = channel->cur_frame;
-		channel->cur_frame++;
-		/* end of system frame ring buffer, start at zero */
-		if ((channel->cur_frame == SYS_FRAMES) ||
-		    (channel->cur_frame == channel->buffer.dwFrames))
-			channel->cur_frame = 0;
-		/* frame ready */
-		if (channel->b_acquire)
-			s2255_got_frame(channel, channel->jpg_size);
-		channel->frame_count++;
-		frm->ulState = S2255_READ_IDLE;
-		frm->cur_size = 0;
-
-	}
-	/* done successfully */
-	return 0;
-}
-
-static void s2255_read_video_callback(struct s2255_dev *dev,
-				      struct s2255_pipeinfo *pipe_info)
-{
-	int res;
-	dprintk(50, "callback read video \n");
-
-	if (dev->cc >= MAX_CHANNELS) {
-		dev->cc = 0;
-		dev_err(&dev->udev->dev, "invalid channel\n");
-		return;
-	}
-	/* otherwise copy to the system buffers */
-	res = save_frame(dev, pipe_info);
-	if (res != 0)
-		dprintk(4, "s2255: read callback failed\n");
-
-	dprintk(50, "callback read video done\n");
-	return;
-}
-
-static long s2255_vendor_req(struct s2255_dev *dev, unsigned char Request,
-			     u16 Index, u16 Value, void *TransferBuffer,
-			     s32 TransferBufferLength, int bOut)
-{
-	int r;
-	if (!bOut) {
-		r = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
-				    Request,
-				    USB_TYPE_VENDOR | USB_RECIP_DEVICE |
-				    USB_DIR_IN,
-				    Value, Index, TransferBuffer,
-				    TransferBufferLength, HZ * 5);
-	} else {
-		r = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
-				    Request, USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-				    Value, Index, TransferBuffer,
-				    TransferBufferLength, HZ * 5);
-	}
-	return r;
-}
-
-/*
- * retrieve FX2 firmware version. future use.
- * @param dev pointer to device extension
- * @return -1 for fail, else returns firmware version as an int(16 bits)
- */
-static int s2255_get_fx2fw(struct s2255_dev *dev)
-{
-	int fw;
-	int ret;
-	unsigned char transBuffer[64];
-	ret = s2255_vendor_req(dev, S2255_VR_FW, 0, 0, transBuffer, 2,
-			       S2255_VR_IN);
-	if (ret < 0)
-		dprintk(2, "get fw error: %x\n", ret);
-	fw = transBuffer[0] + (transBuffer[1] << 8);
-	dprintk(2, "Get FW %x %x\n", transBuffer[0], transBuffer[1]);
-	return fw;
-}
-
-/*
- * Create the system ring buffer to copy frames into from the
- * usb read pipe.
- */
-static int s2255_create_sys_buffers(struct s2255_channel *channel)
-{
-	unsigned long i;
-	unsigned long reqsize;
-	dprintk(1, "create sys buffers\n");
-	channel->buffer.dwFrames = SYS_FRAMES;
-	/* always allocate maximum size(PAL) for system buffers */
-	reqsize = SYS_FRAMES_MAXSIZE;
-
-	if (reqsize > SYS_FRAMES_MAXSIZE)
-		reqsize = SYS_FRAMES_MAXSIZE;
-
-	for (i = 0; i < SYS_FRAMES; i++) {
-		/* allocate the frames */
-		channel->buffer.frame[i].lpvbits = vmalloc(reqsize);
-		dprintk(1, "valloc %p chan %d, idx %lu, pdata %p\n",
-			&channel->buffer.frame[i], channel->idx, i,
-			channel->buffer.frame[i].lpvbits);
-		channel->buffer.frame[i].size = reqsize;
-		if (channel->buffer.frame[i].lpvbits == NULL) {
-			printk(KERN_INFO "out of memory.  using less frames\n");
-			channel->buffer.dwFrames = i;
-			break;
-		}
-	}
-
-	/* make sure internal states are set */
-	for (i = 0; i < SYS_FRAMES; i++) {
-		channel->buffer.frame[i].ulState = 0;
-		channel->buffer.frame[i].cur_size = 0;
-	}
-
-	channel->cur_frame = 0;
-	channel->last_frame = -1;
-	return 0;
-}
-
-static int s2255_release_sys_buffers(struct s2255_channel *channel)
-{
-	unsigned long i;
-	dprintk(1, "release sys buffers\n");
-	for (i = 0; i < SYS_FRAMES; i++) {
-		if (channel->buffer.frame[i].lpvbits) {
-			dprintk(1, "vfree %p\n",
-				channel->buffer.frame[i].lpvbits);
-			vfree(channel->buffer.frame[i].lpvbits);
-		}
-		channel->buffer.frame[i].lpvbits = NULL;
-	}
-	return 0;
-}
-
-static int s2255_board_init(struct s2255_dev *dev)
-{
-	struct s2255_mode mode_def = DEF_MODEI_NTSC_CONT;
-	int fw_ver;
-	int j;
-	struct s2255_pipeinfo *pipe = &dev->pipe;
-	dprintk(4, "board init: %p", dev);
-	memset(pipe, 0, sizeof(*pipe));
-	pipe->dev = dev;
-	pipe->cur_transfer_size = S2255_USB_XFER_SIZE;
-	pipe->max_transfer_size = S2255_USB_XFER_SIZE;
-
-	pipe->transfer_buffer = kzalloc(pipe->max_transfer_size,
-					GFP_KERNEL);
-	if (pipe->transfer_buffer == NULL) {
-		dprintk(1, "out of memory!\n");
-		return -ENOMEM;
-	}
-	/* query the firmware */
-	fw_ver = s2255_get_fx2fw(dev);
-
-	printk(KERN_INFO "s2255: usb firmware version %d.%d\n",
-	       (fw_ver >> 8) & 0xff,
-	       fw_ver & 0xff);
-
-	if (fw_ver < S2255_CUR_USB_FWVER)
-		printk(KERN_INFO "s2255: newer USB firmware available\n");
-
-	for (j = 0; j < MAX_CHANNELS; j++) {
-		struct s2255_channel *channel = &dev->channel[j];
-		channel->b_acquire = 0;
-		channel->mode = mode_def;
-		if (dev->pid == 0x2257 && j > 1)
-			channel->mode.color |= (1 << 16);
-		channel->jc.quality = S2255_DEF_JPEG_QUAL;
-		channel->width = LINE_SZ_4CIFS_NTSC;
-		channel->height = NUM_LINES_4CIFS_NTSC * 2;
-		channel->fmt = &formats[0];
-		channel->mode.restart = 1;
-		channel->req_image_size = get_transfer_size(&mode_def);
-		channel->frame_count = 0;
-		/* create the system buffers */
-		s2255_create_sys_buffers(channel);
-	}
-	/* start read pipe */
-	s2255_start_readpipe(dev);
-	dprintk(1, "%s: success\n", __func__);
-	return 0;
-}
-
-static int s2255_board_shutdown(struct s2255_dev *dev)
-{
-	u32 i;
-	dprintk(1, "%s: dev: %p", __func__,  dev);
-
-	for (i = 0; i < MAX_CHANNELS; i++) {
-		if (dev->channel[i].b_acquire)
-			s2255_stop_acquire(&dev->channel[i]);
-	}
-	s2255_stop_readpipe(dev);
-	for (i = 0; i < MAX_CHANNELS; i++)
-		s2255_release_sys_buffers(&dev->channel[i]);
-	/* release transfer buffer */
-	kfree(dev->pipe.transfer_buffer);
-	return 0;
-}
-
-static void read_pipe_completion(struct urb *purb)
-{
-	struct s2255_pipeinfo *pipe_info;
-	struct s2255_dev *dev;
-	int status;
-	int pipe;
-	pipe_info = purb->context;
-	dprintk(100, "%s: urb:%p, status %d\n", __func__, purb,
-		purb->status);
-	if (pipe_info == NULL) {
-		dev_err(&purb->dev->dev, "no context!\n");
-		return;
-	}
-
-	dev = pipe_info->dev;
-	if (dev == NULL) {
-		dev_err(&purb->dev->dev, "no context!\n");
-		return;
-	}
-	status = purb->status;
-	/* if shutting down, do not resubmit, exit immediately */
-	if (status == -ESHUTDOWN) {
-		dprintk(2, "%s: err shutdown\n", __func__);
-		pipe_info->err_count++;
-		return;
-	}
-
-	if (pipe_info->state == 0) {
-		dprintk(2, "%s: exiting USB pipe", __func__);
-		return;
-	}
-
-	if (status == 0)
-		s2255_read_video_callback(dev, pipe_info);
-	else {
-		pipe_info->err_count++;
-		dprintk(1, "%s: failed URB %d\n", __func__, status);
-	}
-
-	pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint);
-	/* reuse urb */
-	usb_fill_bulk_urb(pipe_info->stream_urb, dev->udev,
-			  pipe,
-			  pipe_info->transfer_buffer,
-			  pipe_info->cur_transfer_size,
-			  read_pipe_completion, pipe_info);
-
-	if (pipe_info->state != 0) {
-		if (usb_submit_urb(pipe_info->stream_urb, GFP_ATOMIC)) {
-			dev_err(&dev->udev->dev, "error submitting urb\n");
-		}
-	} else {
-		dprintk(2, "%s :complete state 0\n", __func__);
-	}
-	return;
-}
-
-static int s2255_start_readpipe(struct s2255_dev *dev)
-{
-	int pipe;
-	int retval;
-	struct s2255_pipeinfo *pipe_info = &dev->pipe;
-	pipe = usb_rcvbulkpipe(dev->udev, dev->read_endpoint);
-	dprintk(2, "%s: IN %d\n", __func__, dev->read_endpoint);
-	pipe_info->state = 1;
-	pipe_info->err_count = 0;
-	pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!pipe_info->stream_urb) {
-		dev_err(&dev->udev->dev,
-			"ReadStream: Unable to alloc URB\n");
-		return -ENOMEM;
-	}
-	/* transfer buffer allocated in board_init */
-	usb_fill_bulk_urb(pipe_info->stream_urb, dev->udev,
-			  pipe,
-			  pipe_info->transfer_buffer,
-			  pipe_info->cur_transfer_size,
-			  read_pipe_completion, pipe_info);
-	retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL);
-	if (retval) {
-		printk(KERN_ERR "s2255: start read pipe failed\n");
-		return retval;
-	}
-	return 0;
-}
-
-/* starts acquisition process */
-static int s2255_start_acquire(struct s2255_channel *channel)
-{
-	unsigned char *buffer;
-	int res;
-	unsigned long chn_rev;
-	int j;
-	struct s2255_dev *dev = to_s2255_dev(channel->vdev.v4l2_dev);
-	chn_rev = G_chnmap[channel->idx];
-	buffer = kzalloc(512, GFP_KERNEL);
-	if (buffer == NULL) {
-		dev_err(&dev->udev->dev, "out of mem\n");
-		return -ENOMEM;
-	}
-
-	channel->last_frame = -1;
-	channel->bad_payload = 0;
-	channel->cur_frame = 0;
-	for (j = 0; j < SYS_FRAMES; j++) {
-		channel->buffer.frame[j].ulState = 0;
-		channel->buffer.frame[j].cur_size = 0;
-	}
-
-	/* send the start command */
-	*(__le32 *) buffer = IN_DATA_TOKEN;
-	*((__le32 *) buffer + 1) = (__le32) cpu_to_le32(chn_rev);
-	*((__le32 *) buffer + 2) = CMD_START;
-	res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
-	if (res != 0)
-		dev_err(&dev->udev->dev, "CMD_START error\n");
-
-	dprintk(2, "start acquire exit[%d] %d \n", channel->idx, res);
-	kfree(buffer);
-	return 0;
-}
-
-static int s2255_stop_acquire(struct s2255_channel *channel)
-{
-	unsigned char *buffer;
-	int res;
-	unsigned long chn_rev;
-	struct s2255_dev *dev = to_s2255_dev(channel->vdev.v4l2_dev);
-	chn_rev = G_chnmap[channel->idx];
-	buffer = kzalloc(512, GFP_KERNEL);
-	if (buffer == NULL) {
-		dev_err(&dev->udev->dev, "out of mem\n");
-		return -ENOMEM;
-	}
-	/* send the stop command */
-	*(__le32 *) buffer = IN_DATA_TOKEN;
-	*((__le32 *) buffer + 1) = (__le32) cpu_to_le32(chn_rev);
-	*((__le32 *) buffer + 2) = CMD_STOP;
-	res = s2255_write_config(dev->udev, (unsigned char *)buffer, 512);
-	if (res != 0)
-		dev_err(&dev->udev->dev, "CMD_STOP error\n");
-	kfree(buffer);
-	channel->b_acquire = 0;
-	dprintk(4, "%s: chn %d, res %d\n", __func__, channel->idx, res);
-	return res;
-}
-
-static void s2255_stop_readpipe(struct s2255_dev *dev)
-{
-	struct s2255_pipeinfo *pipe = &dev->pipe;
-
-	pipe->state = 0;
-	if (pipe->stream_urb) {
-		/* cancel urb */
-		usb_kill_urb(pipe->stream_urb);
-		usb_free_urb(pipe->stream_urb);
-		pipe->stream_urb = NULL;
-	}
-	dprintk(4, "%s", __func__);
-	return;
-}
-
-static void s2255_fwload_start(struct s2255_dev *dev, int reset)
-{
-	if (reset)
-		s2255_reset_dsppower(dev);
-	dev->fw_data->fw_size = dev->fw_data->fw->size;
-	atomic_set(&dev->fw_data->fw_state, S2255_FW_NOTLOADED);
-	memcpy(dev->fw_data->pfw_data,
-	       dev->fw_data->fw->data, CHUNK_SIZE);
-	dev->fw_data->fw_loaded = CHUNK_SIZE;
-	usb_fill_bulk_urb(dev->fw_data->fw_urb, dev->udev,
-			  usb_sndbulkpipe(dev->udev, 2),
-			  dev->fw_data->pfw_data,
-			  CHUNK_SIZE, s2255_fwchunk_complete,
-			  dev->fw_data);
-	mod_timer(&dev->timer, jiffies + HZ);
-}
-
-/* standard usb probe function */
-static int s2255_probe(struct usb_interface *interface,
-		       const struct usb_device_id *id)
-{
-	struct s2255_dev *dev = NULL;
-	struct usb_host_interface *iface_desc;
-	struct usb_endpoint_descriptor *endpoint;
-	int i;
-	int retval = -ENOMEM;
-	__le32 *pdata;
-	int fw_size;
-	dprintk(2, "%s\n", __func__);
-	/* allocate memory for our device state and initialize it to zero */
-	dev = kzalloc(sizeof(struct s2255_dev), GFP_KERNEL);
-	if (dev == NULL) {
-		s2255_dev_err(&interface->dev, "out of memory\n");
-		return -ENOMEM;
-	}
-	atomic_set(&dev->num_channels, 0);
-	dev->pid = id->idProduct;
-	dev->fw_data = kzalloc(sizeof(struct s2255_fw), GFP_KERNEL);
-	if (!dev->fw_data)
-		goto errorFWDATA1;
-	mutex_init(&dev->lock);
-	/* grab usb_device and save it */
-	dev->udev = usb_get_dev(interface_to_usbdev(interface));
-	if (dev->udev == NULL) {
-		dev_err(&interface->dev, "null usb device\n");
-		retval = -ENODEV;
-		goto errorUDEV;
-	}
-	dprintk(1, "dev: %p, udev %p interface %p\n", dev,
-		dev->udev, interface);
-	dev->interface = interface;
-	/* set up the endpoint information  */
-	iface_desc = interface->cur_altsetting;
-	dprintk(1, "num endpoints %d\n", iface_desc->desc.bNumEndpoints);
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
-		endpoint = &iface_desc->endpoint[i].desc;
-		if (!dev->read_endpoint && usb_endpoint_is_bulk_in(endpoint)) {
-			/* we found the bulk in endpoint */
-			dev->read_endpoint = endpoint->bEndpointAddress;
-		}
-	}
-
-	if (!dev->read_endpoint) {
-		dev_err(&interface->dev, "Could not find bulk-in endpoint\n");
-		goto errorEP;
-	}
-	init_timer(&dev->timer);
-	dev->timer.function = s2255_timer;
-	dev->timer.data = (unsigned long)dev->fw_data;
-	init_waitqueue_head(&dev->fw_data->wait_fw);
-	for (i = 0; i < MAX_CHANNELS; i++) {
-		struct s2255_channel *channel = &dev->channel[i];
-		dev->channel[i].idx = i;
-		init_waitqueue_head(&channel->wait_setmode);
-		init_waitqueue_head(&channel->wait_vidstatus);
-	}
-
-	dev->fw_data->fw_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!dev->fw_data->fw_urb) {
-		dev_err(&interface->dev, "out of memory!\n");
-		goto errorFWURB;
-	}
-
-	dev->fw_data->pfw_data = kzalloc(CHUNK_SIZE, GFP_KERNEL);
-	if (!dev->fw_data->pfw_data) {
-		dev_err(&interface->dev, "out of memory!\n");
-		goto errorFWDATA2;
-	}
-	/* load the first chunk */
-	if (request_firmware(&dev->fw_data->fw,
-			     FIRMWARE_FILE_NAME, &dev->udev->dev)) {
-		printk(KERN_ERR "sensoray 2255 failed to get firmware\n");
-		goto errorREQFW;
-	}
-	/* check the firmware is valid */
-	fw_size = dev->fw_data->fw->size;
-	pdata = (__le32 *) &dev->fw_data->fw->data[fw_size - 8];
-
-	if (*pdata != S2255_FW_MARKER) {
-		printk(KERN_INFO "Firmware invalid.\n");
-		retval = -ENODEV;
-		goto errorFWMARKER;
-	} else {
-		/* make sure firmware is the latest */
-		__le32 *pRel;
-		pRel = (__le32 *) &dev->fw_data->fw->data[fw_size - 4];
-		printk(KERN_INFO "s2255 dsp fw version %x\n", *pRel);
-		dev->dsp_fw_ver = le32_to_cpu(*pRel);
-		if (dev->dsp_fw_ver < S2255_CUR_DSP_FWVER)
-			printk(KERN_INFO "s2255: f2255usb.bin out of date.\n");
-		if (dev->pid == 0x2257 &&
-				dev->dsp_fw_ver < S2255_MIN_DSP_COLORFILTER)
-			printk(KERN_WARNING "s2255: 2257 requires firmware %d"
-			       " or above.\n", S2255_MIN_DSP_COLORFILTER);
-	}
-	usb_reset_device(dev->udev);
-	/* load 2255 board specific */
-	retval = s2255_board_init(dev);
-	if (retval)
-		goto errorBOARDINIT;
-	spin_lock_init(&dev->slock);
-	s2255_fwload_start(dev, 0);
-	/* loads v4l specific */
-	retval = s2255_probe_v4l(dev);
-	if (retval)
-		goto errorBOARDINIT;
-	dev_info(&interface->dev, "Sensoray 2255 detected\n");
-	return 0;
-errorBOARDINIT:
-	s2255_board_shutdown(dev);
-errorFWMARKER:
-	release_firmware(dev->fw_data->fw);
-errorREQFW:
-	kfree(dev->fw_data->pfw_data);
-errorFWDATA2:
-	usb_free_urb(dev->fw_data->fw_urb);
-errorFWURB:
-	del_timer(&dev->timer);
-errorEP:
-	usb_put_dev(dev->udev);
-errorUDEV:
-	kfree(dev->fw_data);
-	mutex_destroy(&dev->lock);
-errorFWDATA1:
-	kfree(dev);
-	printk(KERN_WARNING "Sensoray 2255 driver load failed: 0x%x\n", retval);
-	return retval;
-}
-
-/* disconnect routine. when board is removed physically or with rmmod */
-static void s2255_disconnect(struct usb_interface *interface)
-{
-	struct s2255_dev *dev = to_s2255_dev(usb_get_intfdata(interface));
-	int i;
-	int channels = atomic_read(&dev->num_channels);
-	mutex_lock(&dev->lock);
-	v4l2_device_disconnect(&dev->v4l2_dev);
-	mutex_unlock(&dev->lock);
-	/*see comments in the uvc_driver.c usb disconnect function */
-	atomic_inc(&dev->num_channels);
-	/* unregister each video device. */
-	for (i = 0; i < channels; i++)
-		video_unregister_device(&dev->channel[i].vdev);
-	/* wake up any of our timers */
-	atomic_set(&dev->fw_data->fw_state, S2255_FW_DISCONNECTING);
-	wake_up(&dev->fw_data->wait_fw);
-	for (i = 0; i < MAX_CHANNELS; i++) {
-		dev->channel[i].setmode_ready = 1;
-		wake_up(&dev->channel[i].wait_setmode);
-		dev->channel[i].vidstatus_ready = 1;
-		wake_up(&dev->channel[i].wait_vidstatus);
-	}
-	if (atomic_dec_and_test(&dev->num_channels))
-		s2255_destroy(dev);
-	dev_info(&interface->dev, "%s\n", __func__);
-}
-
-static struct usb_driver s2255_driver = {
-	.name = S2255_DRIVER_NAME,
-	.probe = s2255_probe,
-	.disconnect = s2255_disconnect,
-	.id_table = s2255_table,
-};
-
-module_usb_driver(s2255_driver);
-
-MODULE_DESCRIPTION("Sensoray 2255 Video for Linux driver");
-MODULE_AUTHOR("Dean Anderson (Sensoray Company Inc.)");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(S2255_VERSION);
-MODULE_FIRMWARE(FIRMWARE_FILE_NAME);
diff --git a/drivers/media/video/stk-sensor.c b/drivers/media/video/stk-sensor.c
deleted file mode 100644
index e546b014d7a..00000000000
--- a/drivers/media/video/stk-sensor.c
+++ /dev/null
@@ -1,595 +0,0 @@
-/* stk-sensor.c: Driver for ov96xx sensor (used in some Syntek webcams)
- *
- * Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com>
- *
- * Some parts derived from ov7670.c:
- * Copyright 2006 One Laptop Per Child Association, Inc.  Written
- * by Jonathan Corbet with substantial inspiration from Mark
- * McClelland's ovcamchip code.
- *
- * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net>
- *
- * This file may be distributed under the terms of the GNU General
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/* Controlling the sensor via the STK1125 vendor specific control interface:
- * The camera uses an OmniVision sensor and the stk1125 provides an
- * SCCB(i2c)-USB bridge which let us program the sensor.
- * In my case the sensor id is 0x9652, it can be read from sensor's register
- * 0x0A and 0x0B as follows:
- * - read register #R:
- *   output #R to index 0x0208
- *   output 0x0070 to index 0x0200
- *   input 1 byte from index 0x0201 (some kind of status register)
- *     until its value is 0x01
- *   input 1 byte from index 0x0209. This is the value of #R
- * - write value V to register #R
- *   output #R to index 0x0204
- *   output V to index 0x0205
- *   output 0x0005 to index 0x0200
- *   input 1 byte from index 0x0201 until its value becomes 0x04
- */
-
-/* It seems the i2c bus is controlled with these registers */
-
-#include "stk-webcam.h"
-
-#define STK_IIC_BASE		(0x0200)
-#  define STK_IIC_OP		(STK_IIC_BASE)
-#    define STK_IIC_OP_TX	(0x05)
-#    define STK_IIC_OP_RX	(0x70)
-#  define STK_IIC_STAT		(STK_IIC_BASE+1)
-#    define STK_IIC_STAT_TX_OK	(0x04)
-#    define STK_IIC_STAT_RX_OK	(0x01)
-/* I don't know what does this register.
- * when it is 0x00 or 0x01, we cannot talk to the sensor,
- * other values work */
-#  define STK_IIC_ENABLE	(STK_IIC_BASE+2)
-#    define STK_IIC_ENABLE_NO	(0x00)
-/* This is what the driver writes in windows */
-#    define STK_IIC_ENABLE_YES	(0x1e)
-/*
- * Address of the slave. Seems like the binary driver look for the
- * sensor in multiple places, attempting a reset sequence.
- * We only know about the ov9650
- */
-#  define STK_IIC_ADDR		(STK_IIC_BASE+3)
-#  define STK_IIC_TX_INDEX	(STK_IIC_BASE+4)
-#  define STK_IIC_TX_VALUE	(STK_IIC_BASE+5)
-#  define STK_IIC_RX_INDEX	(STK_IIC_BASE+8)
-#  define STK_IIC_RX_VALUE	(STK_IIC_BASE+9)
-
-#define MAX_RETRIES		(50)
-
-#define SENSOR_ADDRESS		(0x60)
-
-/* From ov7670.c (These registers aren't fully accurate) */
-
-/* Registers */
-#define REG_GAIN	0x00	/* Gain lower 8 bits (rest in vref) */
-#define REG_BLUE	0x01	/* blue gain */
-#define REG_RED		0x02	/* red gain */
-#define REG_VREF	0x03	/* Pieces of GAIN, VSTART, VSTOP */
-#define REG_COM1	0x04	/* Control 1 */
-#define  COM1_CCIR656	  0x40  /* CCIR656 enable */
-#define  COM1_QFMT	  0x20  /* QVGA/QCIF format */
-#define  COM1_SKIP_0	  0x00  /* Do not skip any row */
-#define  COM1_SKIP_2	  0x04  /* Skip 2 rows of 4 */
-#define  COM1_SKIP_3	  0x08  /* Skip 3 rows of 4 */
-#define REG_BAVE	0x05	/* U/B Average level */
-#define REG_GbAVE	0x06	/* Y/Gb Average level */
-#define REG_AECHH	0x07	/* AEC MS 5 bits */
-#define REG_RAVE	0x08	/* V/R Average level */
-#define REG_COM2	0x09	/* Control 2 */
-#define  COM2_SSLEEP	  0x10	/* Soft sleep mode */
-#define REG_PID		0x0a	/* Product ID MSB */
-#define REG_VER		0x0b	/* Product ID LSB */
-#define REG_COM3	0x0c	/* Control 3 */
-#define  COM3_SWAP	  0x40	  /* Byte swap */
-#define  COM3_SCALEEN	  0x08	  /* Enable scaling */
-#define  COM3_DCWEN	  0x04	  /* Enable downsamp/crop/window */
-#define REG_COM4	0x0d	/* Control 4 */
-#define REG_COM5	0x0e	/* All "reserved" */
-#define REG_COM6	0x0f	/* Control 6 */
-#define REG_AECH	0x10	/* More bits of AEC value */
-#define REG_CLKRC	0x11	/* Clock control */
-#define   CLK_PLL	  0x80	  /* Enable internal PLL */
-#define   CLK_EXT	  0x40	  /* Use external clock directly */
-#define   CLK_SCALE	  0x3f	  /* Mask for internal clock scale */
-#define REG_COM7	0x12	/* Control 7 */
-#define   COM7_RESET	  0x80	  /* Register reset */
-#define   COM7_FMT_MASK	  0x38
-#define   COM7_FMT_SXGA	  0x00
-#define   COM7_FMT_VGA	  0x40
-#define	  COM7_FMT_CIF	  0x20	  /* CIF format */
-#define   COM7_FMT_QVGA	  0x10	  /* QVGA format */
-#define   COM7_FMT_QCIF	  0x08	  /* QCIF format */
-#define	  COM7_RGB	  0x04	  /* bits 0 and 2 - RGB format */
-#define	  COM7_YUV	  0x00	  /* YUV */
-#define	  COM7_BAYER	  0x01	  /* Bayer format */
-#define	  COM7_PBAYER	  0x05	  /* "Processed bayer" */
-#define REG_COM8	0x13	/* Control 8 */
-#define   COM8_FASTAEC	  0x80	  /* Enable fast AGC/AEC */
-#define   COM8_AECSTEP	  0x40	  /* Unlimited AEC step size */
-#define   COM8_BFILT	  0x20	  /* Band filter enable */
-#define   COM8_AGC	  0x04	  /* Auto gain enable */
-#define   COM8_AWB	  0x02	  /* White balance enable */
-#define   COM8_AEC	  0x01	  /* Auto exposure enable */
-#define REG_COM9	0x14	/* Control 9  - gain ceiling */
-#define REG_COM10	0x15	/* Control 10 */
-#define   COM10_HSYNC	  0x40	  /* HSYNC instead of HREF */
-#define   COM10_PCLK_HB	  0x20	  /* Suppress PCLK on horiz blank */
-#define   COM10_HREF_REV  0x08	  /* Reverse HREF */
-#define   COM10_VS_LEAD	  0x04	  /* VSYNC on clock leading edge */
-#define   COM10_VS_NEG	  0x02	  /* VSYNC negative */
-#define   COM10_HS_NEG	  0x01	  /* HSYNC negative */
-#define REG_HSTART	0x17	/* Horiz start high bits */
-#define REG_HSTOP	0x18	/* Horiz stop high bits */
-#define REG_VSTART	0x19	/* Vert start high bits */
-#define REG_VSTOP	0x1a	/* Vert stop high bits */
-#define REG_PSHFT	0x1b	/* Pixel delay after HREF */
-#define REG_MIDH	0x1c	/* Manuf. ID high */
-#define REG_MIDL	0x1d	/* Manuf. ID low */
-#define REG_MVFP	0x1e	/* Mirror / vflip */
-#define   MVFP_MIRROR	  0x20	  /* Mirror image */
-#define   MVFP_FLIP	  0x10	  /* Vertical flip */
-
-#define REG_AEW		0x24	/* AGC upper limit */
-#define REG_AEB		0x25	/* AGC lower limit */
-#define REG_VPT		0x26	/* AGC/AEC fast mode op region */
-#define REG_ADVFL	0x2d	/* Insert dummy lines (LSB) */
-#define REG_ADVFH	0x2e	/* Insert dummy lines (MSB) */
-#define REG_HSYST	0x30	/* HSYNC rising edge delay */
-#define REG_HSYEN	0x31	/* HSYNC falling edge delay */
-#define REG_HREF	0x32	/* HREF pieces */
-#define REG_TSLB	0x3a	/* lots of stuff */
-#define   TSLB_YLAST	  0x04	  /* UYVY or VYUY - see com13 */
-#define   TSLB_BYTEORD	  0x08	  /* swap bytes in 16bit mode? */
-#define REG_COM11	0x3b	/* Control 11 */
-#define   COM11_NIGHT	  0x80	  /* NIght mode enable */
-#define   COM11_NMFR	  0x60	  /* Two bit NM frame rate */
-#define   COM11_HZAUTO	  0x10	  /* Auto detect 50/60 Hz */
-#define	  COM11_50HZ	  0x08	  /* Manual 50Hz select */
-#define   COM11_EXP	  0x02
-#define REG_COM12	0x3c	/* Control 12 */
-#define   COM12_HREF	  0x80	  /* HREF always */
-#define REG_COM13	0x3d	/* Control 13 */
-#define   COM13_GAMMA	  0x80	  /* Gamma enable */
-#define	  COM13_UVSAT	  0x40	  /* UV saturation auto adjustment */
-#define	  COM13_CMATRIX	  0x10	  /* Enable color matrix for RGB or YUV */
-#define   COM13_UVSWAP	  0x01	  /* V before U - w/TSLB */
-#define REG_COM14	0x3e	/* Control 14 */
-#define   COM14_DCWEN	  0x10	  /* DCW/PCLK-scale enable */
-#define REG_EDGE	0x3f	/* Edge enhancement factor */
-#define REG_COM15	0x40	/* Control 15 */
-#define   COM15_R10F0	  0x00	  /* Data range 10 to F0 */
-#define	  COM15_R01FE	  0x80	  /*            01 to FE */
-#define   COM15_R00FF	  0xc0	  /*            00 to FF */
-#define   COM15_RGB565	  0x10	  /* RGB565 output */
-#define   COM15_RGBFIXME	  0x20	  /* FIXME  */
-#define   COM15_RGB555	  0x30	  /* RGB555 output */
-#define REG_COM16	0x41	/* Control 16 */
-#define   COM16_AWBGAIN   0x08	  /* AWB gain enable */
-#define REG_COM17	0x42	/* Control 17 */
-#define   COM17_AECWIN	  0xc0	  /* AEC window - must match COM4 */
-#define   COM17_CBAR	  0x08	  /* DSP Color bar */
-
-/*
- * This matrix defines how the colors are generated, must be
- * tweaked to adjust hue and saturation.
- *
- * Order: v-red, v-green, v-blue, u-red, u-green, u-blue
- *
- * They are nine-bit signed quantities, with the sign bit
- * stored in 0x58.  Sign for v-red is bit 0, and up from there.
- */
-#define	REG_CMATRIX_BASE 0x4f
-#define   CMATRIX_LEN 6
-#define REG_CMATRIX_SIGN 0x58
-
-
-#define REG_BRIGHT	0x55	/* Brightness */
-#define REG_CONTRAS	0x56	/* Contrast control */
-
-#define REG_GFIX	0x69	/* Fix gain control */
-
-#define REG_RGB444	0x8c	/* RGB 444 control */
-#define   R444_ENABLE	  0x02	  /* Turn on RGB444, overrides 5x5 */
-#define   R444_RGBX	  0x01	  /* Empty nibble at end */
-
-#define REG_HAECC1	0x9f	/* Hist AEC/AGC control 1 */
-#define REG_HAECC2	0xa0	/* Hist AEC/AGC control 2 */
-
-#define REG_BD50MAX	0xa5	/* 50hz banding step limit */
-#define REG_HAECC3	0xa6	/* Hist AEC/AGC control 3 */
-#define REG_HAECC4	0xa7	/* Hist AEC/AGC control 4 */
-#define REG_HAECC5	0xa8	/* Hist AEC/AGC control 5 */
-#define REG_HAECC6	0xa9	/* Hist AEC/AGC control 6 */
-#define REG_HAECC7	0xaa	/* Hist AEC/AGC control 7 */
-#define REG_BD60MAX	0xab	/* 60hz banding step limit */
-
-
-
-
-/* Returns 0 if OK */
-static int stk_sensor_outb(struct stk_camera *dev, u8 reg, u8 val)
-{
-	int i = 0;
-	int tmpval = 0;
-
-	if (stk_camera_write_reg(dev, STK_IIC_TX_INDEX, reg))
-		return 1;
-	if (stk_camera_write_reg(dev, STK_IIC_TX_VALUE, val))
-		return 1;
-	if (stk_camera_write_reg(dev, STK_IIC_OP, STK_IIC_OP_TX))
-		return 1;
-	do {
-		if (stk_camera_read_reg(dev, STK_IIC_STAT, &tmpval))
-			return 1;
-		i++;
-	} while (tmpval == 0 && i < MAX_RETRIES);
-	if (tmpval != STK_IIC_STAT_TX_OK) {
-		if (tmpval)
-			STK_ERROR("stk_sensor_outb failed, status=0x%02x\n",
-				tmpval);
-		return 1;
-	} else
-		return 0;
-}
-
-static int stk_sensor_inb(struct stk_camera *dev, u8 reg, u8 *val)
-{
-	int i = 0;
-	int tmpval = 0;
-
-	if (stk_camera_write_reg(dev, STK_IIC_RX_INDEX, reg))
-		return 1;
-	if (stk_camera_write_reg(dev, STK_IIC_OP, STK_IIC_OP_RX))
-		return 1;
-	do {
-		if (stk_camera_read_reg(dev, STK_IIC_STAT, &tmpval))
-			return 1;
-		i++;
-	} while (tmpval == 0 && i < MAX_RETRIES);
-	if (tmpval != STK_IIC_STAT_RX_OK) {
-		if (tmpval)
-			STK_ERROR("stk_sensor_inb failed, status=0x%02x\n",
-				tmpval);
-		return 1;
-	}
-
-	if (stk_camera_read_reg(dev, STK_IIC_RX_VALUE, &tmpval))
-		return 1;
-
-	*val = (u8) tmpval;
-	return 0;
-}
-
-static int stk_sensor_write_regvals(struct stk_camera *dev,
-		struct regval *rv)
-{
-	int ret;
-	if (rv == NULL)
-		return 0;
-	while (rv->reg != 0xff || rv->val != 0xff) {
-		ret = stk_sensor_outb(dev, rv->reg, rv->val);
-		if (ret != 0)
-			return ret;
-		rv++;
-	}
-	return 0;
-}
-
-int stk_sensor_sleep(struct stk_camera *dev)
-{
-	u8 tmp;
-	return stk_sensor_inb(dev, REG_COM2, &tmp)
-		|| stk_sensor_outb(dev, REG_COM2, tmp|COM2_SSLEEP);
-}
-
-int stk_sensor_wakeup(struct stk_camera *dev)
-{
-	u8 tmp;
-	return stk_sensor_inb(dev, REG_COM2, &tmp)
-		|| stk_sensor_outb(dev, REG_COM2, tmp&~COM2_SSLEEP);
-}
-
-static struct regval ov_initvals[] = {
-	{REG_CLKRC, CLK_PLL},
-	{REG_COM11, 0x01},
-	{0x6a, 0x7d},
-	{REG_AECH, 0x40},
-	{REG_GAIN, 0x00},
-	{REG_BLUE, 0x80},
-	{REG_RED, 0x80},
-	/* Do not enable fast AEC for now */
-	/*{REG_COM8, COM8_FASTAEC|COM8_AECSTEP|COM8_BFILT|COM8_AGC|COM8_AEC},*/
-	{REG_COM8, COM8_AECSTEP|COM8_BFILT|COM8_AGC|COM8_AEC},
-	{0x39, 0x50}, {0x38, 0x93},
-	{0x37, 0x00}, {0x35, 0x81},
-	{REG_COM5, 0x20},
-	{REG_COM1, 0x00},
-	{REG_COM3, 0x00},
-	{REG_COM4, 0x00},
-	{REG_PSHFT, 0x00},
-	{0x16, 0x07},
-	{0x33, 0xe2}, {0x34, 0xbf},
-	{REG_COM16, 0x00},
-	{0x96, 0x04},
-	/* Gamma curve values */
-/*	{ 0x7a, 0x20 },		{ 0x7b, 0x10 },
-	{ 0x7c, 0x1e },		{ 0x7d, 0x35 },
-	{ 0x7e, 0x5a },		{ 0x7f, 0x69 },
-	{ 0x80, 0x76 },		{ 0x81, 0x80 },
-	{ 0x82, 0x88 },		{ 0x83, 0x8f },
-	{ 0x84, 0x96 },		{ 0x85, 0xa3 },
-	{ 0x86, 0xaf },		{ 0x87, 0xc4 },
-	{ 0x88, 0xd7 },		{ 0x89, 0xe8 },
-*/
-	{REG_GFIX, 0x40},
-	{0x8e, 0x00},
-	{REG_COM12, 0x73},
-	{0x8f, 0xdf}, {0x8b, 0x06},
-	{0x8c, 0x20},
-	{0x94, 0x88}, {0x95, 0x88},
-/*	{REG_COM15, 0xc1}, TODO */
-	{0x29, 0x3f},
-	{REG_COM6, 0x42},
-	{REG_BD50MAX, 0x80},
-	{REG_HAECC6, 0xb8}, {REG_HAECC7, 0x92},
-	{REG_BD60MAX, 0x0a},
-	{0x90, 0x00}, {0x91, 0x00},
-	{REG_HAECC1, 0x00}, {REG_HAECC2, 0x00},
-	{REG_AEW, 0x68}, {REG_AEB, 0x5c},
-	{REG_VPT, 0xc3},
-	{REG_COM9, 0x2e},
-	{0x2a, 0x00}, {0x2b, 0x00},
-
-	{0xff, 0xff}, /* END MARKER */
-};
-
-/* Probe the I2C bus and initialise the sensor chip */
-int stk_sensor_init(struct stk_camera *dev)
-{
-	u8 idl = 0;
-	u8 idh = 0;
-
-	if (stk_camera_write_reg(dev, STK_IIC_ENABLE, STK_IIC_ENABLE_YES)
-		|| stk_camera_write_reg(dev, STK_IIC_ADDR, SENSOR_ADDRESS)
-		|| stk_sensor_outb(dev, REG_COM7, COM7_RESET)) {
-		STK_ERROR("Sensor resetting failed\n");
-		return -ENODEV;
-	}
-	msleep(10);
-	/* Read the manufacturer ID: ov = 0x7FA2 */
-	if (stk_sensor_inb(dev, REG_MIDH, &idh)
-	    || stk_sensor_inb(dev, REG_MIDL, &idl)) {
-		STK_ERROR("Strange error reading sensor ID\n");
-		return -ENODEV;
-	}
-	if (idh != 0x7f || idl != 0xa2) {
-		STK_ERROR("Huh? you don't have a sensor from ovt\n");
-		return -ENODEV;
-	}
-	if (stk_sensor_inb(dev, REG_PID, &idh)
-	    || stk_sensor_inb(dev, REG_VER, &idl)) {
-		STK_ERROR("Could not read sensor model\n");
-		return -ENODEV;
-	}
-	stk_sensor_write_regvals(dev, ov_initvals);
-	msleep(10);
-	STK_INFO("OmniVision sensor detected, id %02X%02X"
-		" at address %x\n", idh, idl, SENSOR_ADDRESS);
-	return 0;
-}
-
-/* V4L2_PIX_FMT_UYVY */
-static struct regval ov_fmt_uyvy[] = {
-	{REG_TSLB, TSLB_YLAST|0x08 },
-	{ 0x4f, 0x80 }, 	/* "matrix coefficient 1" */
-	{ 0x50, 0x80 }, 	/* "matrix coefficient 2" */
-	{ 0x51, 0    },		/* vb */
-	{ 0x52, 0x22 }, 	/* "matrix coefficient 4" */
-	{ 0x53, 0x5e }, 	/* "matrix coefficient 5" */
-	{ 0x54, 0x80 }, 	/* "matrix coefficient 6" */
-	{REG_COM13, COM13_UVSAT|COM13_CMATRIX},
-	{REG_COM15, COM15_R00FF },
-	{0xff, 0xff}, /* END MARKER */
-};
-/* V4L2_PIX_FMT_YUYV */
-static struct regval ov_fmt_yuyv[] = {
-	{REG_TSLB, 0 },
-	{ 0x4f, 0x80 }, 	/* "matrix coefficient 1" */
-	{ 0x50, 0x80 }, 	/* "matrix coefficient 2" */
-	{ 0x51, 0    },		/* vb */
-	{ 0x52, 0x22 }, 	/* "matrix coefficient 4" */
-	{ 0x53, 0x5e }, 	/* "matrix coefficient 5" */
-	{ 0x54, 0x80 }, 	/* "matrix coefficient 6" */
-	{REG_COM13, COM13_UVSAT|COM13_CMATRIX},
-	{REG_COM15, COM15_R00FF },
-	{0xff, 0xff}, /* END MARKER */
-};
-
-/* V4L2_PIX_FMT_RGB565X rrrrrggg gggbbbbb */
-static struct regval ov_fmt_rgbr[] = {
-	{ REG_RGB444, 0 },	/* No RGB444 please */
-	{REG_TSLB, 0x00},
-	{ REG_COM1, 0x0 },
-	{ REG_COM9, 0x38 }, 	/* 16x gain ceiling; 0x8 is reserved bit */
-	{ 0x4f, 0xb3 }, 	/* "matrix coefficient 1" */
-	{ 0x50, 0xb3 }, 	/* "matrix coefficient 2" */
-	{ 0x51, 0    },		/* vb */
-	{ 0x52, 0x3d }, 	/* "matrix coefficient 4" */
-	{ 0x53, 0xa7 }, 	/* "matrix coefficient 5" */
-	{ 0x54, 0xe4 }, 	/* "matrix coefficient 6" */
-	{ REG_COM13, COM13_GAMMA },
-	{ REG_COM15, COM15_RGB565|COM15_R00FF },
-	{ 0xff, 0xff },
-};
-
-/* V4L2_PIX_FMT_RGB565 gggbbbbb rrrrrggg */
-static struct regval ov_fmt_rgbp[] = {
-	{ REG_RGB444, 0 },	/* No RGB444 please */
-	{REG_TSLB, TSLB_BYTEORD },
-	{ REG_COM1, 0x0 },
-	{ REG_COM9, 0x38 }, 	/* 16x gain ceiling; 0x8 is reserved bit */
-	{ 0x4f, 0xb3 }, 	/* "matrix coefficient 1" */
-	{ 0x50, 0xb3 }, 	/* "matrix coefficient 2" */
-	{ 0x51, 0    },		/* vb */
-	{ 0x52, 0x3d }, 	/* "matrix coefficient 4" */
-	{ 0x53, 0xa7 }, 	/* "matrix coefficient 5" */
-	{ 0x54, 0xe4 }, 	/* "matrix coefficient 6" */
-	{ REG_COM13, COM13_GAMMA },
-	{ REG_COM15, COM15_RGB565|COM15_R00FF },
-	{ 0xff, 0xff },
-};
-
-/* V4L2_PIX_FMT_SRGGB8 */
-static struct regval ov_fmt_bayer[] = {
-	/* This changes color order */
-	{REG_TSLB, 0x40}, /* BGGR */
-	/* {REG_TSLB, 0x08}, */ /* BGGR with vertical image flipping */
-	{REG_COM15, COM15_R00FF },
-	{0xff, 0xff}, /* END MARKER */
-};
-/*
- * Store a set of start/stop values into the camera.
- */
-static int stk_sensor_set_hw(struct stk_camera *dev,
-		int hstart, int hstop, int vstart, int vstop)
-{
-	int ret;
-	unsigned char v;
-/*
- * Horizontal: 11 bits, top 8 live in hstart and hstop.  Bottom 3 of
- * hstart are in href[2:0], bottom 3 of hstop in href[5:3].  There is
- * a mystery "edge offset" value in the top two bits of href.
- */
-	ret =  stk_sensor_outb(dev, REG_HSTART, (hstart >> 3) & 0xff);
-	ret += stk_sensor_outb(dev, REG_HSTOP, (hstop >> 3) & 0xff);
-	ret += stk_sensor_inb(dev, REG_HREF, &v);
-	v = (v & 0xc0) | ((hstop & 0x7) << 3) | (hstart & 0x7);
-	msleep(10);
-	ret += stk_sensor_outb(dev, REG_HREF, v);
-/*
- * Vertical: similar arrangement (note: this is different from ov7670.c)
- */
-	ret += stk_sensor_outb(dev, REG_VSTART, (vstart >> 3) & 0xff);
-	ret += stk_sensor_outb(dev, REG_VSTOP, (vstop >> 3) & 0xff);
-	ret += stk_sensor_inb(dev, REG_VREF, &v);
-	v = (v & 0xc0) | ((vstop & 0x7) << 3) | (vstart & 0x7);
-	msleep(10);
-	ret += stk_sensor_outb(dev, REG_VREF, v);
-	return ret;
-}
-
-
-int stk_sensor_configure(struct stk_camera *dev)
-{
-	int com7;
-	/*
-	 * We setup the sensor to output dummy lines in low-res modes,
-	 * so we don't get absurdly hight framerates.
-	 */
-	unsigned dummylines;
-	int flip;
-	struct regval *rv;
-
-	switch (dev->vsettings.mode) {
-	case MODE_QCIF: com7 = COM7_FMT_QCIF;
-		dummylines = 604;
-		break;
-	case MODE_QVGA: com7 = COM7_FMT_QVGA;
-		dummylines = 267;
-		break;
-	case MODE_CIF: com7 = COM7_FMT_CIF;
-		dummylines = 412;
-		break;
-	case MODE_VGA: com7 = COM7_FMT_VGA;
-		dummylines = 11;
-		break;
-	case MODE_SXGA: com7 = COM7_FMT_SXGA;
-		dummylines = 0;
-		break;
-	default: STK_ERROR("Unsupported mode %d\n", dev->vsettings.mode);
-		return -EFAULT;
-	}
-	switch (dev->vsettings.palette) {
-	case V4L2_PIX_FMT_UYVY:
-		com7 |= COM7_YUV;
-		rv = ov_fmt_uyvy;
-		break;
-	case V4L2_PIX_FMT_YUYV:
-		com7 |= COM7_YUV;
-		rv = ov_fmt_yuyv;
-		break;
-	case V4L2_PIX_FMT_RGB565:
-		com7 |= COM7_RGB;
-		rv = ov_fmt_rgbp;
-		break;
-	case V4L2_PIX_FMT_RGB565X:
-		com7 |= COM7_RGB;
-		rv = ov_fmt_rgbr;
-		break;
-	case V4L2_PIX_FMT_SBGGR8:
-		com7 |= COM7_PBAYER;
-		rv = ov_fmt_bayer;
-		break;
-	default: STK_ERROR("Unsupported colorspace\n");
-		return -EFAULT;
-	}
-	/*FIXME sometimes the sensor go to a bad state
-	stk_sensor_write_regvals(dev, ov_initvals); */
-	stk_sensor_outb(dev, REG_COM7, com7);
-	msleep(50);
-	stk_sensor_write_regvals(dev, rv);
-	flip = (dev->vsettings.vflip?MVFP_FLIP:0)
-		| (dev->vsettings.hflip?MVFP_MIRROR:0);
-	stk_sensor_outb(dev, REG_MVFP, flip);
-	if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8
-			&& !dev->vsettings.vflip)
-		stk_sensor_outb(dev, REG_TSLB, 0x08);
-	stk_sensor_outb(dev, REG_ADVFH, dummylines >> 8);
-	stk_sensor_outb(dev, REG_ADVFL, dummylines & 0xff);
-	msleep(50);
-	switch (dev->vsettings.mode) {
-	case MODE_VGA:
-		if (stk_sensor_set_hw(dev, 302, 1582, 6, 486))
-			STK_ERROR("stk_sensor_set_hw failed (VGA)\n");
-		break;
-	case MODE_SXGA:
-	case MODE_CIF:
-	case MODE_QVGA:
-	case MODE_QCIF:
-		/*FIXME These settings seem ignored by the sensor
-		if (stk_sensor_set_hw(dev, 220, 1500, 10, 1034))
-			STK_ERROR("stk_sensor_set_hw failed (SXGA)\n");
-		*/
-		break;
-	}
-	msleep(10);
-	return 0;
-}
-
-int stk_sensor_set_brightness(struct stk_camera *dev, int br)
-{
-	if (br < 0 || br > 0xff)
-		return -EINVAL;
-	stk_sensor_outb(dev, REG_AEB, max(0x00, br - 6));
-	stk_sensor_outb(dev, REG_AEW, min(0xff, br + 6));
-	return 0;
-}
-
diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c
deleted file mode 100644
index 86a0fc56c33..00000000000
--- a/drivers/media/video/stk-webcam.c
+++ /dev/null
@@ -1,1380 +0,0 @@
-/*
- * stk-webcam.c : Driver for Syntek 1125 USB webcam controller
- *
- * Copyright (C) 2006 Nicolas VIVIEN
- * Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com>
- *
- * Some parts are inspired from cafe_ccic.c
- * Copyright 2006-2007 Jonathan Corbet
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-
-#include <linux/usb.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-
-#include "stk-webcam.h"
-
-
-static bool hflip;
-module_param(hflip, bool, 0444);
-MODULE_PARM_DESC(hflip, "Horizontal image flip (mirror). Defaults to 0");
-
-static bool vflip;
-module_param(vflip, bool, 0444);
-MODULE_PARM_DESC(vflip, "Vertical image flip. Defaults to 0");
-
-static int debug;
-module_param(debug, int, 0444);
-MODULE_PARM_DESC(debug, "Debug v4l ioctls. Defaults to 0");
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jaime Velasco Juan <jsagarribay@gmail.com> and Nicolas VIVIEN");
-MODULE_DESCRIPTION("Syntek DC1125 webcam driver");
-
-
-/* bool for webcam LED management */
-int first_init = 1;
-
-/* Some cameras have audio interfaces, we aren't interested in those */
-static struct usb_device_id stkwebcam_table[] = {
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x174f, 0xa311, 0xff, 0xff, 0xff) },
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x05e1, 0x0501, 0xff, 0xff, 0xff) },
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, stkwebcam_table);
-
-/*
- * Basic stuff
- */
-int stk_camera_write_reg(struct stk_camera *dev, u16 index, u8 value)
-{
-	struct usb_device *udev = dev->udev;
-	int ret;
-
-	ret =  usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
-			0x01,
-			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			value,
-			index,
-			NULL,
-			0,
-			500);
-	if (ret < 0)
-		return ret;
-	else
-		return 0;
-}
-
-int stk_camera_read_reg(struct stk_camera *dev, u16 index, int *value)
-{
-	struct usb_device *udev = dev->udev;
-	int ret;
-
-	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
-			0x00,
-			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
-			0x00,
-			index,
-			(u8 *) value,
-			sizeof(u8),
-			500);
-	if (ret < 0)
-		return ret;
-	else
-		return 0;
-}
-
-static int stk_start_stream(struct stk_camera *dev)
-{
-	int value;
-	int i, ret;
-	int value_116, value_117;
-
-	if (!is_present(dev))
-		return -ENODEV;
-	if (!is_memallocd(dev) || !is_initialised(dev)) {
-		STK_ERROR("FIXME: Buffers are not allocated\n");
-		return -EFAULT;
-	}
-	ret = usb_set_interface(dev->udev, 0, 5);
-
-	if (ret < 0)
-		STK_ERROR("usb_set_interface failed !\n");
-	if (stk_sensor_wakeup(dev))
-		STK_ERROR("error awaking the sensor\n");
-
-	stk_camera_read_reg(dev, 0x0116, &value_116);
-	stk_camera_read_reg(dev, 0x0117, &value_117);
-
-	stk_camera_write_reg(dev, 0x0116, 0x0000);
-	stk_camera_write_reg(dev, 0x0117, 0x0000);
-
-	stk_camera_read_reg(dev, 0x0100, &value);
-	stk_camera_write_reg(dev, 0x0100, value | 0x80);
-
-	stk_camera_write_reg(dev, 0x0116, value_116);
-	stk_camera_write_reg(dev, 0x0117, value_117);
-	for (i = 0; i < MAX_ISO_BUFS; i++) {
-		if (dev->isobufs[i].urb) {
-			ret = usb_submit_urb(dev->isobufs[i].urb, GFP_KERNEL);
-			atomic_inc(&dev->urbs_used);
-			if (ret)
-				return ret;
-		}
-	}
-	set_streaming(dev);
-	return 0;
-}
-
-static int stk_stop_stream(struct stk_camera *dev)
-{
-	int value;
-	int i;
-	if (is_present(dev)) {
-		stk_camera_read_reg(dev, 0x0100, &value);
-		stk_camera_write_reg(dev, 0x0100, value & ~0x80);
-		if (dev->isobufs != NULL) {
-			for (i = 0; i < MAX_ISO_BUFS; i++) {
-				if (dev->isobufs[i].urb)
-					usb_kill_urb(dev->isobufs[i].urb);
-			}
-		}
-		unset_streaming(dev);
-
-		if (usb_set_interface(dev->udev, 0, 0))
-			STK_ERROR("usb_set_interface failed !\n");
-		if (stk_sensor_sleep(dev))
-			STK_ERROR("error suspending the sensor\n");
-	}
-	return 0;
-}
-
-/*
- * This seems to be the shortest init sequence we
- * must do in order to find the sensor
- * Bit 5 of reg. 0x0000 here is important, when reset to 0 the sensor
- * is also reset. Maybe powers down it?
- * Rest of values don't make a difference
- */
-
-static struct regval stk1125_initvals[] = {
-	/*TODO: What means this sequence? */
-	{0x0000, 0x24},
-	{0x0100, 0x21},
-	{0x0002, 0x68},
-	{0x0003, 0x80},
-	{0x0005, 0x00},
-	{0x0007, 0x03},
-	{0x000d, 0x00},
-	{0x000f, 0x02},
-	{0x0300, 0x12},
-	{0x0350, 0x41},
-	{0x0351, 0x00},
-	{0x0352, 0x00},
-	{0x0353, 0x00},
-	{0x0018, 0x10},
-	{0x0019, 0x00},
-	{0x001b, 0x0e},
-	{0x001c, 0x46},
-	{0x0300, 0x80},
-	{0x001a, 0x04},
-	{0x0110, 0x00},
-	{0x0111, 0x00},
-	{0x0112, 0x00},
-	{0x0113, 0x00},
-
-	{0xffff, 0xff},
-};
-
-
-static int stk_initialise(struct stk_camera *dev)
-{
-	struct regval *rv;
-	int ret;
-	if (!is_present(dev))
-		return -ENODEV;
-	if (is_initialised(dev))
-		return 0;
-	rv = stk1125_initvals;
-	while (rv->reg != 0xffff) {
-		ret = stk_camera_write_reg(dev, rv->reg, rv->val);
-		if (ret)
-			return ret;
-		rv++;
-	}
-	if (stk_sensor_init(dev) == 0) {
-		set_initialised(dev);
-		return 0;
-	} else
-		return -1;
-}
-
-/* *********************************************** */
-/*
- * This function is called as an URB transfert is complete (Isochronous pipe).
- * So, the traitement is done in interrupt time, so it has be fast, not crash,
- * and not stall. Neat.
- */
-static void stk_isoc_handler(struct urb *urb)
-{
-	int i;
-	int ret;
-	int framelen;
-	unsigned long flags;
-
-	unsigned char *fill = NULL;
-	unsigned char *iso_buf = NULL;
-
-	struct stk_camera *dev;
-	struct stk_sio_buffer *fb;
-
-	dev = (struct stk_camera *) urb->context;
-
-	if (dev == NULL) {
-		STK_ERROR("isoc_handler called with NULL device !\n");
-		return;
-	}
-
-	if (urb->status == -ENOENT || urb->status == -ECONNRESET
-		|| urb->status == -ESHUTDOWN) {
-		atomic_dec(&dev->urbs_used);
-		return;
-	}
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-
-	if (urb->status != -EINPROGRESS && urb->status != 0) {
-		STK_ERROR("isoc_handler: urb->status == %d\n", urb->status);
-		goto resubmit;
-	}
-
-	if (list_empty(&dev->sio_avail)) {
-		/*FIXME Stop streaming after a while */
-		(void) (printk_ratelimit() &&
-		STK_ERROR("isoc_handler without available buffer!\n"));
-		goto resubmit;
-	}
-	fb = list_first_entry(&dev->sio_avail,
-			struct stk_sio_buffer, list);
-	fill = fb->buffer + fb->v4lbuf.bytesused;
-
-	for (i = 0; i < urb->number_of_packets; i++) {
-		if (urb->iso_frame_desc[i].status != 0) {
-			if (urb->iso_frame_desc[i].status != -EXDEV)
-				STK_ERROR("Frame %d has error %d\n", i,
-					urb->iso_frame_desc[i].status);
-			continue;
-		}
-		framelen = urb->iso_frame_desc[i].actual_length;
-		iso_buf = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
-
-		if (framelen <= 4)
-			continue; /* no data */
-
-		/*
-		 * we found something informational from there
-		 * the isoc frames have to type of headers
-		 * type1: 00 xx 00 00 or 20 xx 00 00
-		 * type2: 80 xx 00 00 00 00 00 00 or a0 xx 00 00 00 00 00 00
-		 * xx is a sequencer which has never been seen over 0x3f
-		 * imho data written down looks like bayer, i see similarities
-		 * after every 640 bytes
-		 */
-		if (*iso_buf & 0x80) {
-			framelen -= 8;
-			iso_buf += 8;
-			/* This marks a new frame */
-			if (fb->v4lbuf.bytesused != 0
-				&& fb->v4lbuf.bytesused != dev->frame_size) {
-				(void) (printk_ratelimit() &&
-				STK_ERROR("frame %d, "
-					"bytesused=%d, skipping\n",
-					i, fb->v4lbuf.bytesused));
-				fb->v4lbuf.bytesused = 0;
-				fill = fb->buffer;
-			} else if (fb->v4lbuf.bytesused == dev->frame_size) {
-				if (list_is_singular(&dev->sio_avail)) {
-					/* Always reuse the last buffer */
-					fb->v4lbuf.bytesused = 0;
-					fill = fb->buffer;
-				} else {
-					list_move_tail(dev->sio_avail.next,
-						&dev->sio_full);
-					wake_up(&dev->wait_frame);
-					fb = list_first_entry(&dev->sio_avail,
-						struct stk_sio_buffer, list);
-					fb->v4lbuf.bytesused = 0;
-					fill = fb->buffer;
-				}
-			}
-		} else {
-			framelen -= 4;
-			iso_buf += 4;
-		}
-
-		/* Our buffer is full !!! */
-		if (framelen + fb->v4lbuf.bytesused > dev->frame_size) {
-			(void) (printk_ratelimit() &&
-			STK_ERROR("Frame buffer overflow, lost sync\n"));
-			/*FIXME Do something here? */
-			continue;
-		}
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		memcpy(fill, iso_buf, framelen);
-		spin_lock_irqsave(&dev->spinlock, flags);
-		fill += framelen;
-
-		/* New size of our buffer */
-		fb->v4lbuf.bytesused += framelen;
-	}
-
-resubmit:
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-	urb->dev = dev->udev;
-	ret = usb_submit_urb(urb, GFP_ATOMIC);
-	if (ret != 0) {
-		STK_ERROR("Error (%d) re-submitting urb in stk_isoc_handler.\n",
-			ret);
-	}
-}
-
-/* -------------------------------------------- */
-
-static int stk_prepare_iso(struct stk_camera *dev)
-{
-	void *kbuf;
-	int i, j;
-	struct urb *urb;
-	struct usb_device *udev;
-
-	if (dev == NULL)
-		return -ENXIO;
-	udev = dev->udev;
-
-	if (dev->isobufs)
-		STK_ERROR("isobufs already allocated. Bad\n");
-	else
-		dev->isobufs = kcalloc(MAX_ISO_BUFS, sizeof(*dev->isobufs),
-				       GFP_KERNEL);
-	if (dev->isobufs == NULL) {
-		STK_ERROR("Unable to allocate iso buffers\n");
-		return -ENOMEM;
-	}
-	for (i = 0; i < MAX_ISO_BUFS; i++) {
-		if (dev->isobufs[i].data == NULL) {
-			kbuf = kzalloc(ISO_BUFFER_SIZE, GFP_KERNEL);
-			if (kbuf == NULL) {
-				STK_ERROR("Failed to allocate iso buffer %d\n",
-					i);
-				goto isobufs_out;
-			}
-			dev->isobufs[i].data = kbuf;
-		} else
-			STK_ERROR("isobuf data already allocated\n");
-		if (dev->isobufs[i].urb == NULL) {
-			urb = usb_alloc_urb(ISO_FRAMES_PER_DESC, GFP_KERNEL);
-			if (urb == NULL) {
-				STK_ERROR("Failed to allocate URB %d\n", i);
-				goto isobufs_out;
-			}
-			dev->isobufs[i].urb = urb;
-		} else {
-			STK_ERROR("Killing URB\n");
-			usb_kill_urb(dev->isobufs[i].urb);
-			urb = dev->isobufs[i].urb;
-		}
-		urb->interval = 1;
-		urb->dev = udev;
-		urb->pipe = usb_rcvisocpipe(udev, dev->isoc_ep);
-		urb->transfer_flags = URB_ISO_ASAP;
-		urb->transfer_buffer = dev->isobufs[i].data;
-		urb->transfer_buffer_length = ISO_BUFFER_SIZE;
-		urb->complete = stk_isoc_handler;
-		urb->context = dev;
-		urb->start_frame = 0;
-		urb->number_of_packets = ISO_FRAMES_PER_DESC;
-
-		for (j = 0; j < ISO_FRAMES_PER_DESC; j++) {
-			urb->iso_frame_desc[j].offset = j * ISO_MAX_FRAME_SIZE;
-			urb->iso_frame_desc[j].length = ISO_MAX_FRAME_SIZE;
-		}
-	}
-	set_memallocd(dev);
-	return 0;
-
-isobufs_out:
-	for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].data; i++)
-		kfree(dev->isobufs[i].data);
-	for (i = 0; i < MAX_ISO_BUFS && dev->isobufs[i].urb; i++)
-		usb_free_urb(dev->isobufs[i].urb);
-	kfree(dev->isobufs);
-	dev->isobufs = NULL;
-	return -ENOMEM;
-}
-
-static void stk_clean_iso(struct stk_camera *dev)
-{
-	int i;
-
-	if (dev == NULL || dev->isobufs == NULL)
-		return;
-
-	for (i = 0; i < MAX_ISO_BUFS; i++) {
-		struct urb *urb;
-
-		urb = dev->isobufs[i].urb;
-		if (urb) {
-			if (atomic_read(&dev->urbs_used) && is_present(dev))
-				usb_kill_urb(urb);
-			usb_free_urb(urb);
-		}
-		kfree(dev->isobufs[i].data);
-	}
-	kfree(dev->isobufs);
-	dev->isobufs = NULL;
-	unset_memallocd(dev);
-}
-
-static int stk_setup_siobuf(struct stk_camera *dev, int index)
-{
-	struct stk_sio_buffer *buf = dev->sio_bufs + index;
-	INIT_LIST_HEAD(&buf->list);
-	buf->v4lbuf.length = PAGE_ALIGN(dev->frame_size);
-	buf->buffer = vmalloc_user(buf->v4lbuf.length);
-	if (buf->buffer == NULL)
-		return -ENOMEM;
-	buf->mapcount = 0;
-	buf->dev = dev;
-	buf->v4lbuf.index = index;
-	buf->v4lbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-	buf->v4lbuf.field = V4L2_FIELD_NONE;
-	buf->v4lbuf.memory = V4L2_MEMORY_MMAP;
-	buf->v4lbuf.m.offset = 2*index*buf->v4lbuf.length;
-	return 0;
-}
-
-static int stk_free_sio_buffers(struct stk_camera *dev)
-{
-	int i;
-	int nbufs;
-	unsigned long flags;
-	if (dev->n_sbufs == 0 || dev->sio_bufs == NULL)
-		return 0;
-	/*
-	* If any buffers are mapped, we cannot free them at all.
-	*/
-	for (i = 0; i < dev->n_sbufs; i++) {
-		if (dev->sio_bufs[i].mapcount > 0)
-			return -EBUSY;
-	}
-	/*
-	* OK, let's do it.
-	*/
-	spin_lock_irqsave(&dev->spinlock, flags);
-	INIT_LIST_HEAD(&dev->sio_avail);
-	INIT_LIST_HEAD(&dev->sio_full);
-	nbufs = dev->n_sbufs;
-	dev->n_sbufs = 0;
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-	for (i = 0; i < nbufs; i++) {
-		if (dev->sio_bufs[i].buffer != NULL)
-			vfree(dev->sio_bufs[i].buffer);
-	}
-	kfree(dev->sio_bufs);
-	dev->sio_bufs = NULL;
-	return 0;
-}
-
-static int stk_prepare_sio_buffers(struct stk_camera *dev, unsigned n_sbufs)
-{
-	int i;
-	if (dev->sio_bufs != NULL)
-		STK_ERROR("sio_bufs already allocated\n");
-	else {
-		dev->sio_bufs = kzalloc(n_sbufs * sizeof(struct stk_sio_buffer),
-				GFP_KERNEL);
-		if (dev->sio_bufs == NULL)
-			return -ENOMEM;
-		for (i = 0; i < n_sbufs; i++) {
-			if (stk_setup_siobuf(dev, i))
-				return (dev->n_sbufs > 1 ? 0 : -ENOMEM);
-			dev->n_sbufs = i+1;
-		}
-	}
-	return 0;
-}
-
-static int stk_allocate_buffers(struct stk_camera *dev, unsigned n_sbufs)
-{
-	int err;
-	err = stk_prepare_iso(dev);
-	if (err) {
-		stk_clean_iso(dev);
-		return err;
-	}
-	err = stk_prepare_sio_buffers(dev, n_sbufs);
-	if (err) {
-		stk_free_sio_buffers(dev);
-		return err;
-	}
-	return 0;
-}
-
-static void stk_free_buffers(struct stk_camera *dev)
-{
-	stk_clean_iso(dev);
-	stk_free_sio_buffers(dev);
-}
-/* -------------------------------------------- */
-
-/* v4l file operations */
-
-static int v4l_stk_open(struct file *fp)
-{
-	struct stk_camera *dev;
-	struct video_device *vdev;
-
-	vdev = video_devdata(fp);
-	dev = vdev_to_camera(vdev);
-
-	if (dev == NULL || !is_present(dev))
-		return -ENXIO;
-
-	if (!first_init)
-		stk_camera_write_reg(dev, 0x0, 0x24);
-	else
-		first_init = 0;
-
-	fp->private_data = dev;
-	usb_autopm_get_interface(dev->interface);
-
-	return 0;
-}
-
-static int v4l_stk_release(struct file *fp)
-{
-	struct stk_camera *dev = fp->private_data;
-
-	if (dev->owner == fp) {
-		stk_stop_stream(dev);
-		stk_free_buffers(dev);
-		stk_camera_write_reg(dev, 0x0, 0x49); /* turn off the LED */
-		unset_initialised(dev);
-		dev->owner = NULL;
-	}
-
-	if (is_present(dev))
-		usb_autopm_put_interface(dev->interface);
-
-	return 0;
-}
-
-static ssize_t v4l_stk_read(struct file *fp, char __user *buf,
-		size_t count, loff_t *f_pos)
-{
-	int i;
-	int ret;
-	unsigned long flags;
-	struct stk_sio_buffer *sbuf;
-	struct stk_camera *dev = fp->private_data;
-
-	if (!is_present(dev))
-		return -EIO;
-	if (dev->owner && dev->owner != fp)
-		return -EBUSY;
-	dev->owner = fp;
-	if (!is_streaming(dev)) {
-		if (stk_initialise(dev)
-			|| stk_allocate_buffers(dev, 3)
-			|| stk_start_stream(dev))
-			return -ENOMEM;
-		spin_lock_irqsave(&dev->spinlock, flags);
-		for (i = 0; i < dev->n_sbufs; i++) {
-			list_add_tail(&dev->sio_bufs[i].list, &dev->sio_avail);
-			dev->sio_bufs[i].v4lbuf.flags = V4L2_BUF_FLAG_QUEUED;
-		}
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-	}
-	if (*f_pos == 0) {
-		if (fp->f_flags & O_NONBLOCK && list_empty(&dev->sio_full))
-			return -EWOULDBLOCK;
-		ret = wait_event_interruptible(dev->wait_frame,
-			!list_empty(&dev->sio_full) || !is_present(dev));
-		if (ret)
-			return ret;
-		if (!is_present(dev))
-			return -EIO;
-	}
-	if (count + *f_pos > dev->frame_size)
-		count = dev->frame_size - *f_pos;
-	spin_lock_irqsave(&dev->spinlock, flags);
-	if (list_empty(&dev->sio_full)) {
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-		STK_ERROR("BUG: No siobufs ready\n");
-		return 0;
-	}
-	sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-
-	if (copy_to_user(buf, sbuf->buffer + *f_pos, count))
-		return -EFAULT;
-
-	*f_pos += count;
-
-	if (*f_pos >= dev->frame_size) {
-		*f_pos = 0;
-		spin_lock_irqsave(&dev->spinlock, flags);
-		list_move_tail(&sbuf->list, &dev->sio_avail);
-		spin_unlock_irqrestore(&dev->spinlock, flags);
-	}
-	return count;
-}
-
-static unsigned int v4l_stk_poll(struct file *fp, poll_table *wait)
-{
-	struct stk_camera *dev = fp->private_data;
-
-	poll_wait(fp, &dev->wait_frame, wait);
-
-	if (!is_present(dev))
-		return POLLERR;
-
-	if (!list_empty(&dev->sio_full))
-		return POLLIN | POLLRDNORM;
-
-	return 0;
-}
-
-
-static void stk_v4l_vm_open(struct vm_area_struct *vma)
-{
-	struct stk_sio_buffer *sbuf = vma->vm_private_data;
-	sbuf->mapcount++;
-}
-static void stk_v4l_vm_close(struct vm_area_struct *vma)
-{
-	struct stk_sio_buffer *sbuf = vma->vm_private_data;
-	sbuf->mapcount--;
-	if (sbuf->mapcount == 0)
-		sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_MAPPED;
-}
-static const struct vm_operations_struct stk_v4l_vm_ops = {
-	.open = stk_v4l_vm_open,
-	.close = stk_v4l_vm_close
-};
-
-static int v4l_stk_mmap(struct file *fp, struct vm_area_struct *vma)
-{
-	unsigned int i;
-	int ret;
-	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-	struct stk_camera *dev = fp->private_data;
-	struct stk_sio_buffer *sbuf = NULL;
-
-	if (!(vma->vm_flags & VM_WRITE) || !(vma->vm_flags & VM_SHARED))
-		return -EINVAL;
-
-	for (i = 0; i < dev->n_sbufs; i++) {
-		if (dev->sio_bufs[i].v4lbuf.m.offset == offset) {
-			sbuf = dev->sio_bufs + i;
-			break;
-		}
-	}
-	if (sbuf == NULL)
-		return -EINVAL;
-	ret = remap_vmalloc_range(vma, sbuf->buffer, 0);
-	if (ret)
-		return ret;
-	vma->vm_flags |= VM_DONTEXPAND;
-	vma->vm_private_data = sbuf;
-	vma->vm_ops = &stk_v4l_vm_ops;
-	sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_MAPPED;
-	stk_v4l_vm_open(vma);
-	return 0;
-}
-
-/* v4l ioctl handlers */
-
-static int stk_vidioc_querycap(struct file *filp,
-		void *priv, struct v4l2_capability *cap)
-{
-	strcpy(cap->driver, "stk");
-	strcpy(cap->card, "stk");
-	cap->version = DRIVER_VERSION_NUM;
-
-	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE
-		| V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
-	return 0;
-}
-
-static int stk_vidioc_enum_input(struct file *filp,
-		void *priv, struct v4l2_input *input)
-{
-	if (input->index != 0)
-		return -EINVAL;
-
-	strcpy(input->name, "Syntek USB Camera");
-	input->type = V4L2_INPUT_TYPE_CAMERA;
-	return 0;
-}
-
-
-static int stk_vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
-{
-	*i = 0;
-	return 0;
-}
-
-static int stk_vidioc_s_input(struct file *filp, void *priv, unsigned int i)
-{
-	if (i != 0)
-		return -EINVAL;
-	else
-		return 0;
-}
-
-/* from vivi.c */
-static int stk_vidioc_s_std(struct file *filp, void *priv, v4l2_std_id *a)
-{
-	return 0;
-}
-
-/* List of all V4Lv2 controls supported by the driver */
-static struct v4l2_queryctrl stk_controls[] = {
-	{
-		.id      = V4L2_CID_BRIGHTNESS,
-		.type    = V4L2_CTRL_TYPE_INTEGER,
-		.name    = "Brightness",
-		.minimum = 0,
-		.maximum = 0xffff,
-		.step    = 0x0100,
-		.default_value = 0x6000,
-	},
-	{
-		.id      = V4L2_CID_HFLIP,
-		.type    = V4L2_CTRL_TYPE_BOOLEAN,
-		.name    = "Horizontal Flip",
-		.minimum = 0,
-		.maximum = 1,
-		.step    = 1,
-		.default_value = 1,
-	},
-	{
-		.id      = V4L2_CID_VFLIP,
-		.type    = V4L2_CTRL_TYPE_BOOLEAN,
-		.name    = "Vertical Flip",
-		.minimum = 0,
-		.maximum = 1,
-		.step    = 1,
-		.default_value = 1,
-	},
-};
-
-static int stk_vidioc_queryctrl(struct file *filp,
-		void *priv, struct v4l2_queryctrl *c)
-{
-	int i;
-	int nbr;
-	nbr = ARRAY_SIZE(stk_controls);
-
-	for (i = 0; i < nbr; i++) {
-		if (stk_controls[i].id == c->id) {
-			memcpy(c, &stk_controls[i],
-				sizeof(struct v4l2_queryctrl));
-			return 0;
-		}
-	}
-	return -EINVAL;
-}
-
-static int stk_vidioc_g_ctrl(struct file *filp,
-		void *priv, struct v4l2_control *c)
-{
-	struct stk_camera *dev = priv;
-	switch (c->id) {
-	case V4L2_CID_BRIGHTNESS:
-		c->value = dev->vsettings.brightness;
-		break;
-	case V4L2_CID_HFLIP:
-		c->value = dev->vsettings.hflip;
-		break;
-	case V4L2_CID_VFLIP:
-		c->value = dev->vsettings.vflip;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int stk_vidioc_s_ctrl(struct file *filp,
-		void *priv, struct v4l2_control *c)
-{
-	struct stk_camera *dev = priv;
-	switch (c->id) {
-	case V4L2_CID_BRIGHTNESS:
-		dev->vsettings.brightness = c->value;
-		return stk_sensor_set_brightness(dev, c->value >> 8);
-	case V4L2_CID_HFLIP:
-		dev->vsettings.hflip = c->value;
-		return 0;
-	case V4L2_CID_VFLIP:
-		dev->vsettings.vflip = c->value;
-		return 0;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-
-static int stk_vidioc_enum_fmt_vid_cap(struct file *filp,
-		void *priv, struct v4l2_fmtdesc *fmtd)
-{
-	switch (fmtd->index) {
-	case 0:
-		fmtd->pixelformat = V4L2_PIX_FMT_RGB565;
-		strcpy(fmtd->description, "r5g6b5");
-		break;
-	case 1:
-		fmtd->pixelformat = V4L2_PIX_FMT_RGB565X;
-		strcpy(fmtd->description, "r5g6b5BE");
-		break;
-	case 2:
-		fmtd->pixelformat = V4L2_PIX_FMT_UYVY;
-		strcpy(fmtd->description, "yuv4:2:2");
-		break;
-	case 3:
-		fmtd->pixelformat = V4L2_PIX_FMT_SBGGR8;
-		strcpy(fmtd->description, "Raw bayer");
-		break;
-	case 4:
-		fmtd->pixelformat = V4L2_PIX_FMT_YUYV;
-		strcpy(fmtd->description, "yuv4:2:2");
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static struct stk_size {
-	unsigned w;
-	unsigned h;
-	enum stk_mode m;
-} stk_sizes[] = {
-	{ .w = 1280, .h = 1024, .m = MODE_SXGA, },
-	{ .w = 640,  .h = 480,  .m = MODE_VGA,  },
-	{ .w = 352,  .h = 288,  .m = MODE_CIF,  },
-	{ .w = 320,  .h = 240,  .m = MODE_QVGA, },
-	{ .w = 176,  .h = 144,  .m = MODE_QCIF, },
-};
-
-static int stk_vidioc_g_fmt_vid_cap(struct file *filp,
-		void *priv, struct v4l2_format *f)
-{
-	struct v4l2_pix_format *pix_format = &f->fmt.pix;
-	struct stk_camera *dev = priv;
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(stk_sizes) &&
-			stk_sizes[i].m != dev->vsettings.mode; i++)
-		;
-	if (i == ARRAY_SIZE(stk_sizes)) {
-		STK_ERROR("ERROR: mode invalid\n");
-		return -EINVAL;
-	}
-	pix_format->width = stk_sizes[i].w;
-	pix_format->height = stk_sizes[i].h;
-	pix_format->field = V4L2_FIELD_NONE;
-	pix_format->colorspace = V4L2_COLORSPACE_SRGB;
-	pix_format->pixelformat = dev->vsettings.palette;
-	if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8)
-		pix_format->bytesperline = pix_format->width;
-	else
-		pix_format->bytesperline = 2 * pix_format->width;
-	pix_format->sizeimage = pix_format->bytesperline
-				* pix_format->height;
-	return 0;
-}
-
-static int stk_vidioc_try_fmt_vid_cap(struct file *filp,
-		void *priv, struct v4l2_format *fmtd)
-{
-	int i;
-	switch (fmtd->fmt.pix.pixelformat) {
-	case V4L2_PIX_FMT_RGB565:
-	case V4L2_PIX_FMT_RGB565X:
-	case V4L2_PIX_FMT_UYVY:
-	case V4L2_PIX_FMT_YUYV:
-	case V4L2_PIX_FMT_SBGGR8:
-		break;
-	default:
-		return -EINVAL;
-	}
-	for (i = 1; i < ARRAY_SIZE(stk_sizes); i++) {
-		if (fmtd->fmt.pix.width > stk_sizes[i].w)
-			break;
-	}
-	if (i == ARRAY_SIZE(stk_sizes)
-		|| (abs(fmtd->fmt.pix.width - stk_sizes[i-1].w)
-			< abs(fmtd->fmt.pix.width - stk_sizes[i].w))) {
-		fmtd->fmt.pix.height = stk_sizes[i-1].h;
-		fmtd->fmt.pix.width = stk_sizes[i-1].w;
-		fmtd->fmt.pix.priv = i - 1;
-	} else {
-		fmtd->fmt.pix.height = stk_sizes[i].h;
-		fmtd->fmt.pix.width = stk_sizes[i].w;
-		fmtd->fmt.pix.priv = i;
-	}
-
-	fmtd->fmt.pix.field = V4L2_FIELD_NONE;
-	fmtd->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
-	if (fmtd->fmt.pix.pixelformat == V4L2_PIX_FMT_SBGGR8)
-		fmtd->fmt.pix.bytesperline = fmtd->fmt.pix.width;
-	else
-		fmtd->fmt.pix.bytesperline = 2 * fmtd->fmt.pix.width;
-	fmtd->fmt.pix.sizeimage = fmtd->fmt.pix.bytesperline
-		* fmtd->fmt.pix.height;
-	return 0;
-}
-
-static int stk_setup_format(struct stk_camera *dev)
-{
-	int i = 0;
-	int depth;
-	if (dev->vsettings.palette == V4L2_PIX_FMT_SBGGR8)
-		depth = 1;
-	else
-		depth = 2;
-	while (i < ARRAY_SIZE(stk_sizes) &&
-			stk_sizes[i].m != dev->vsettings.mode)
-		i++;
-	if (i == ARRAY_SIZE(stk_sizes)) {
-		STK_ERROR("Something is broken in %s\n", __func__);
-		return -EFAULT;
-	}
-	/* This registers controls some timings, not sure of what. */
-	stk_camera_write_reg(dev, 0x001b, 0x0e);
-	if (dev->vsettings.mode == MODE_SXGA)
-		stk_camera_write_reg(dev, 0x001c, 0x0e);
-	else
-		stk_camera_write_reg(dev, 0x001c, 0x46);
-	/*
-	 * Registers 0x0115 0x0114 are the size of each line (bytes),
-	 * regs 0x0117 0x0116 are the heigth of the image.
-	 */
-	stk_camera_write_reg(dev, 0x0115,
-		((stk_sizes[i].w * depth) >> 8) & 0xff);
-	stk_camera_write_reg(dev, 0x0114,
-		(stk_sizes[i].w * depth) & 0xff);
-	stk_camera_write_reg(dev, 0x0117,
-		(stk_sizes[i].h >> 8) & 0xff);
-	stk_camera_write_reg(dev, 0x0116,
-		stk_sizes[i].h & 0xff);
-	return stk_sensor_configure(dev);
-}
-
-static int stk_vidioc_s_fmt_vid_cap(struct file *filp,
-		void *priv, struct v4l2_format *fmtd)
-{
-	int ret;
-	struct stk_camera *dev = priv;
-
-	if (dev == NULL)
-		return -ENODEV;
-	if (!is_present(dev))
-		return -ENODEV;
-	if (is_streaming(dev))
-		return -EBUSY;
-	if (dev->owner && dev->owner != filp)
-		return -EBUSY;
-	ret = stk_vidioc_try_fmt_vid_cap(filp, priv, fmtd);
-	if (ret)
-		return ret;
-	dev->owner = filp;
-
-	dev->vsettings.palette = fmtd->fmt.pix.pixelformat;
-	stk_free_buffers(dev);
-	dev->frame_size = fmtd->fmt.pix.sizeimage;
-	dev->vsettings.mode = stk_sizes[fmtd->fmt.pix.priv].m;
-
-	stk_initialise(dev);
-	return stk_setup_format(dev);
-}
-
-static int stk_vidioc_reqbufs(struct file *filp,
-		void *priv, struct v4l2_requestbuffers *rb)
-{
-	struct stk_camera *dev = priv;
-
-	if (dev == NULL)
-		return -ENODEV;
-	if (rb->memory != V4L2_MEMORY_MMAP)
-		return -EINVAL;
-	if (is_streaming(dev)
-		|| (dev->owner && dev->owner != filp))
-		return -EBUSY;
-	dev->owner = filp;
-
-	/*FIXME If they ask for zero, we must stop streaming and free */
-	if (rb->count < 3)
-		rb->count = 3;
-	/* Arbitrary limit */
-	else if (rb->count > 5)
-		rb->count = 5;
-
-	stk_allocate_buffers(dev, rb->count);
-	rb->count = dev->n_sbufs;
-	return 0;
-}
-
-static int stk_vidioc_querybuf(struct file *filp,
-		void *priv, struct v4l2_buffer *buf)
-{
-	struct stk_camera *dev = priv;
-	struct stk_sio_buffer *sbuf;
-
-	if (buf->index >= dev->n_sbufs)
-		return -EINVAL;
-	sbuf = dev->sio_bufs + buf->index;
-	*buf = sbuf->v4lbuf;
-	return 0;
-}
-
-static int stk_vidioc_qbuf(struct file *filp,
-		void *priv, struct v4l2_buffer *buf)
-{
-	struct stk_camera *dev = priv;
-	struct stk_sio_buffer *sbuf;
-	unsigned long flags;
-
-	if (buf->memory != V4L2_MEMORY_MMAP)
-		return -EINVAL;
-
-	if (buf->index >= dev->n_sbufs)
-		return -EINVAL;
-	sbuf = dev->sio_bufs + buf->index;
-	if (sbuf->v4lbuf.flags & V4L2_BUF_FLAG_QUEUED)
-		return 0;
-	sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_QUEUED;
-	sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_DONE;
-	spin_lock_irqsave(&dev->spinlock, flags);
-	list_add_tail(&sbuf->list, &dev->sio_avail);
-	*buf = sbuf->v4lbuf;
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-	return 0;
-}
-
-static int stk_vidioc_dqbuf(struct file *filp,
-		void *priv, struct v4l2_buffer *buf)
-{
-	struct stk_camera *dev = priv;
-	struct stk_sio_buffer *sbuf;
-	unsigned long flags;
-	int ret;
-
-	if (!is_streaming(dev))
-		return -EINVAL;
-
-	if (filp->f_flags & O_NONBLOCK && list_empty(&dev->sio_full))
-		return -EWOULDBLOCK;
-	ret = wait_event_interruptible(dev->wait_frame,
-		!list_empty(&dev->sio_full) || !is_present(dev));
-	if (ret)
-		return ret;
-	if (!is_present(dev))
-		return -EIO;
-
-	spin_lock_irqsave(&dev->spinlock, flags);
-	sbuf = list_first_entry(&dev->sio_full, struct stk_sio_buffer, list);
-	list_del_init(&sbuf->list);
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-	sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_QUEUED;
-	sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_DONE;
-	sbuf->v4lbuf.sequence = ++dev->sequence;
-	do_gettimeofday(&sbuf->v4lbuf.timestamp);
-
-	*buf = sbuf->v4lbuf;
-	return 0;
-}
-
-static int stk_vidioc_streamon(struct file *filp,
-		void *priv, enum v4l2_buf_type type)
-{
-	struct stk_camera *dev = priv;
-	if (is_streaming(dev))
-		return 0;
-	if (dev->sio_bufs == NULL)
-		return -EINVAL;
-	dev->sequence = 0;
-	return stk_start_stream(dev);
-}
-
-static int stk_vidioc_streamoff(struct file *filp,
-		void *priv, enum v4l2_buf_type type)
-{
-	struct stk_camera *dev = priv;
-	unsigned long flags;
-	int i;
-	stk_stop_stream(dev);
-	spin_lock_irqsave(&dev->spinlock, flags);
-	INIT_LIST_HEAD(&dev->sio_avail);
-	INIT_LIST_HEAD(&dev->sio_full);
-	for (i = 0; i < dev->n_sbufs; i++) {
-		INIT_LIST_HEAD(&dev->sio_bufs[i].list);
-		dev->sio_bufs[i].v4lbuf.flags = 0;
-	}
-	spin_unlock_irqrestore(&dev->spinlock, flags);
-	return 0;
-}
-
-
-static int stk_vidioc_g_parm(struct file *filp,
-		void *priv, struct v4l2_streamparm *sp)
-{
-	/*FIXME This is not correct */
-	sp->parm.capture.timeperframe.numerator = 1;
-	sp->parm.capture.timeperframe.denominator = 30;
-	sp->parm.capture.readbuffers = 2;
-	return 0;
-}
-
-static int stk_vidioc_enum_framesizes(struct file *filp,
-		void *priv, struct v4l2_frmsizeenum *frms)
-{
-	if (frms->index >= ARRAY_SIZE(stk_sizes))
-		return -EINVAL;
-	switch (frms->pixel_format) {
-	case V4L2_PIX_FMT_RGB565:
-	case V4L2_PIX_FMT_RGB565X:
-	case V4L2_PIX_FMT_UYVY:
-	case V4L2_PIX_FMT_YUYV:
-	case V4L2_PIX_FMT_SBGGR8:
-		frms->type = V4L2_FRMSIZE_TYPE_DISCRETE;
-		frms->discrete.width = stk_sizes[frms->index].w;
-		frms->discrete.height = stk_sizes[frms->index].h;
-		return 0;
-	default: return -EINVAL;
-	}
-}
-
-static struct v4l2_file_operations v4l_stk_fops = {
-	.owner = THIS_MODULE,
-	.open = v4l_stk_open,
-	.release = v4l_stk_release,
-	.read = v4l_stk_read,
-	.poll = v4l_stk_poll,
-	.mmap = v4l_stk_mmap,
-	.ioctl = video_ioctl2,
-};
-
-static const struct v4l2_ioctl_ops v4l_stk_ioctl_ops = {
-	.vidioc_querycap = stk_vidioc_querycap,
-	.vidioc_enum_fmt_vid_cap = stk_vidioc_enum_fmt_vid_cap,
-	.vidioc_try_fmt_vid_cap = stk_vidioc_try_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap = stk_vidioc_s_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap = stk_vidioc_g_fmt_vid_cap,
-	.vidioc_enum_input = stk_vidioc_enum_input,
-	.vidioc_s_input = stk_vidioc_s_input,
-	.vidioc_g_input = stk_vidioc_g_input,
-	.vidioc_s_std = stk_vidioc_s_std,
-	.vidioc_reqbufs = stk_vidioc_reqbufs,
-	.vidioc_querybuf = stk_vidioc_querybuf,
-	.vidioc_qbuf = stk_vidioc_qbuf,
-	.vidioc_dqbuf = stk_vidioc_dqbuf,
-	.vidioc_streamon = stk_vidioc_streamon,
-	.vidioc_streamoff = stk_vidioc_streamoff,
-	.vidioc_queryctrl = stk_vidioc_queryctrl,
-	.vidioc_g_ctrl = stk_vidioc_g_ctrl,
-	.vidioc_s_ctrl = stk_vidioc_s_ctrl,
-	.vidioc_g_parm = stk_vidioc_g_parm,
-	.vidioc_enum_framesizes = stk_vidioc_enum_framesizes,
-};
-
-static void stk_v4l_dev_release(struct video_device *vd)
-{
-	struct stk_camera *dev = vdev_to_camera(vd);
-
-	if (dev->sio_bufs != NULL || dev->isobufs != NULL)
-		STK_ERROR("We are leaking memory\n");
-	usb_put_intf(dev->interface);
-	kfree(dev);
-}
-
-static struct video_device stk_v4l_data = {
-	.name = "stkwebcam",
-	.tvnorms = V4L2_STD_UNKNOWN,
-	.current_norm = V4L2_STD_UNKNOWN,
-	.fops = &v4l_stk_fops,
-	.ioctl_ops = &v4l_stk_ioctl_ops,
-	.release = stk_v4l_dev_release,
-};
-
-
-static int stk_register_video_device(struct stk_camera *dev)
-{
-	int err;
-
-	dev->vdev = stk_v4l_data;
-	dev->vdev.debug = debug;
-	dev->vdev.parent = &dev->interface->dev;
-	err = video_register_device(&dev->vdev, VFL_TYPE_GRABBER, -1);
-	if (err)
-		STK_ERROR("v4l registration failed\n");
-	else
-		STK_INFO("Syntek USB2.0 Camera is now controlling device %s\n",
-			 video_device_node_name(&dev->vdev));
-	return err;
-}
-
-
-/* USB Stuff */
-
-static int stk_camera_probe(struct usb_interface *interface,
-		const struct usb_device_id *id)
-{
-	int i;
-	int err = 0;
-
-	struct stk_camera *dev = NULL;
-	struct usb_device *udev = interface_to_usbdev(interface);
-	struct usb_host_interface *iface_desc;
-	struct usb_endpoint_descriptor *endpoint;
-
-	dev = kzalloc(sizeof(struct stk_camera), GFP_KERNEL);
-	if (dev == NULL) {
-		STK_ERROR("Out of memory !\n");
-		return -ENOMEM;
-	}
-
-	spin_lock_init(&dev->spinlock);
-	init_waitqueue_head(&dev->wait_frame);
-
-	dev->udev = udev;
-	dev->interface = interface;
-	usb_get_intf(interface);
-
-	dev->vsettings.vflip = vflip;
-	dev->vsettings.hflip = hflip;
-	dev->n_sbufs = 0;
-	set_present(dev);
-
-	/* Set up the endpoint information
-	 * use only the first isoc-in endpoint
-	 * for the current alternate setting */
-	iface_desc = interface->cur_altsetting;
-
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
-		endpoint = &iface_desc->endpoint[i].desc;
-
-		if (!dev->isoc_ep
-			&& usb_endpoint_is_isoc_in(endpoint)) {
-			/* we found an isoc in endpoint */
-			dev->isoc_ep = usb_endpoint_num(endpoint);
-			break;
-		}
-	}
-	if (!dev->isoc_ep) {
-		STK_ERROR("Could not find isoc-in endpoint");
-		err = -ENODEV;
-		goto error;
-	}
-	dev->vsettings.brightness = 0x7fff;
-	dev->vsettings.palette = V4L2_PIX_FMT_RGB565;
-	dev->vsettings.mode = MODE_VGA;
-	dev->frame_size = 640 * 480 * 2;
-
-	INIT_LIST_HEAD(&dev->sio_avail);
-	INIT_LIST_HEAD(&dev->sio_full);
-
-	usb_set_intfdata(interface, dev);
-
-	err = stk_register_video_device(dev);
-	if (err)
-		goto error;
-
-	return 0;
-
-error:
-	kfree(dev);
-	return err;
-}
-
-static void stk_camera_disconnect(struct usb_interface *interface)
-{
-	struct stk_camera *dev = usb_get_intfdata(interface);
-
-	usb_set_intfdata(interface, NULL);
-	unset_present(dev);
-
-	wake_up_interruptible(&dev->wait_frame);
-
-	STK_INFO("Syntek USB2.0 Camera release resources device %s\n",
-		 video_device_node_name(&dev->vdev));
-
-	video_unregister_device(&dev->vdev);
-}
-
-#ifdef CONFIG_PM
-static int stk_camera_suspend(struct usb_interface *intf, pm_message_t message)
-{
-	struct stk_camera *dev = usb_get_intfdata(intf);
-	if (is_streaming(dev)) {
-		stk_stop_stream(dev);
-		/* yes, this is ugly */
-		set_streaming(dev);
-	}
-	return 0;
-}
-
-static int stk_camera_resume(struct usb_interface *intf)
-{
-	struct stk_camera *dev = usb_get_intfdata(intf);
-	if (!is_initialised(dev))
-		return 0;
-	unset_initialised(dev);
-	stk_initialise(dev);
-	stk_camera_write_reg(dev, 0x0, 0x49);
-	stk_setup_format(dev);
-	if (is_streaming(dev))
-		stk_start_stream(dev);
-	return 0;
-}
-#endif
-
-static struct usb_driver stk_camera_driver = {
-	.name = "stkwebcam",
-	.probe = stk_camera_probe,
-	.disconnect = stk_camera_disconnect,
-	.id_table = stkwebcam_table,
-#ifdef CONFIG_PM
-	.suspend = stk_camera_suspend,
-	.resume = stk_camera_resume,
-#endif
-};
-
-module_usb_driver(stk_camera_driver);
diff --git a/drivers/media/video/stk-webcam.h b/drivers/media/video/stk-webcam.h
deleted file mode 100644
index 9f673663757..00000000000
--- a/drivers/media/video/stk-webcam.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * stk-webcam.h : Driver for Syntek 1125 USB webcam controller
- *
- * Copyright (C) 2006 Nicolas VIVIEN
- * Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef STKWEBCAM_H
-#define STKWEBCAM_H
-
-#include <linux/usb.h>
-#include <media/v4l2-common.h>
-
-#define DRIVER_VERSION		"v0.0.1"
-#define DRIVER_VERSION_NUM	0x000001
-
-#define MAX_ISO_BUFS		3
-#define ISO_FRAMES_PER_DESC	16
-#define ISO_MAX_FRAME_SIZE	3 * 1024
-#define ISO_BUFFER_SIZE		(ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
-
-
-#define PREFIX				"stkwebcam: "
-#define STK_INFO(str, args...)		printk(KERN_INFO PREFIX str, ##args)
-#define STK_ERROR(str, args...)		printk(KERN_ERR PREFIX str, ##args)
-#define STK_WARNING(str, args...)	printk(KERN_WARNING PREFIX str, ##args)
-
-struct stk_iso_buf {
-	void *data;
-	int length;
-	int read;
-	struct urb *urb;
-};
-
-/* Streaming IO buffers */
-struct stk_sio_buffer {
-	struct v4l2_buffer v4lbuf;
-	char *buffer;
-	int mapcount;
-	struct stk_camera *dev;
-	struct list_head list;
-};
-
-enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF};
-
-struct stk_video {
-	enum stk_mode mode;
-	int brightness;
-	__u32 palette;
-	int hflip;
-	int vflip;
-};
-
-enum stk_status {
-	S_PRESENT = 1,
-	S_INITIALISED = 2,
-	S_MEMALLOCD = 4,
-	S_STREAMING = 8,
-};
-#define is_present(dev)		((dev)->status & S_PRESENT)
-#define is_initialised(dev)	((dev)->status & S_INITIALISED)
-#define is_streaming(dev)	((dev)->status & S_STREAMING)
-#define is_memallocd(dev)	((dev)->status & S_MEMALLOCD)
-#define set_present(dev)	((dev)->status = S_PRESENT)
-#define unset_present(dev)	((dev)->status &= \
-					~(S_PRESENT|S_INITIALISED|S_STREAMING))
-#define set_initialised(dev)	((dev)->status |= S_INITIALISED)
-#define unset_initialised(dev)	((dev)->status &= ~S_INITIALISED)
-#define set_memallocd(dev)	((dev)->status |= S_MEMALLOCD)
-#define unset_memallocd(dev)	((dev)->status &= ~S_MEMALLOCD)
-#define set_streaming(dev)	((dev)->status |= S_STREAMING)
-#define unset_streaming(dev)	((dev)->status &= ~S_STREAMING)
-
-struct regval {
-	unsigned reg;
-	unsigned val;
-};
-
-struct stk_camera {
-	struct video_device vdev;
-	struct usb_device *udev;
-	struct usb_interface *interface;
-	int webcam_model;
-	struct file *owner;
-
-	u8 isoc_ep;
-
-	/* Not sure if this is right */
-	atomic_t urbs_used;
-
-	struct stk_video vsettings;
-
-	enum stk_status status;
-
-	spinlock_t spinlock;
-	wait_queue_head_t wait_frame;
-
-	struct stk_iso_buf *isobufs;
-
-	int frame_size;
-	/* Streaming buffers */
-	unsigned int n_sbufs;
-	struct stk_sio_buffer *sio_bufs;
-	struct list_head sio_avail;
-	struct list_head sio_full;
-	unsigned sequence;
-};
-
-#define vdev_to_camera(d) container_of(d, struct stk_camera, vdev)
-
-int stk_camera_write_reg(struct stk_camera *, u16, u8);
-int stk_camera_read_reg(struct stk_camera *, u16, int *);
-
-int stk_sensor_init(struct stk_camera *);
-int stk_sensor_configure(struct stk_camera *);
-int stk_sensor_sleep(struct stk_camera *dev);
-int stk_sensor_wakeup(struct stk_camera *dev);
-int stk_sensor_set_brightness(struct stk_camera *dev, int br);
-
-#endif
diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c
deleted file mode 100644
index 9afab35878b..00000000000
--- a/drivers/media/video/zr364xx.c
+++ /dev/null
@@ -1,1643 +0,0 @@
-/*
- * Zoran 364xx based USB webcam module version 0.73
- *
- * Allows you to use your USB webcam with V4L2 applications
- * This is still in heavy developpement !
- *
- * Copyright (C) 2004  Antoine Jacquet <royale@zerezo.com>
- * http://royale.zerezo.com/zr364xx/
- *
- * Heavily inspired by usb-skeleton.c, vicam.c, cpia.c and spca50x.c drivers
- * V4L2 version inspired by meye.c driver
- *
- * Some video buffer code by Lamarque based on s2255drv.c and vivi.c drivers.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/usb.h>
-#include <linux/vmalloc.h>
-#include <linux/slab.h>
-#include <linux/proc_fs.h>
-#include <linux/highmem.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-fh.h>
-#include <media/v4l2-event.h>
-#include <media/videobuf-vmalloc.h>
-
-
-/* Version Information */
-#define DRIVER_VERSION "0.7.4"
-#define DRIVER_AUTHOR "Antoine Jacquet, http://royale.zerezo.com/"
-#define DRIVER_DESC "Zoran 364xx"
-
-
-/* Camera */
-#define FRAMES 1
-#define MAX_FRAME_SIZE 200000
-#define BUFFER_SIZE 0x1000
-#define CTRL_TIMEOUT 500
-
-#define ZR364XX_DEF_BUFS	4
-#define ZR364XX_READ_IDLE	0
-#define ZR364XX_READ_FRAME	1
-
-/* Debug macro */
-#define DBG(fmt, args...) \
-	do { \
-		if (debug) { \
-			printk(KERN_INFO KBUILD_MODNAME " " fmt, ##args); \
-		} \
-	} while (0)
-
-/*#define FULL_DEBUG 1*/
-#ifdef FULL_DEBUG
-#define _DBG DBG
-#else
-#define _DBG(fmt, args...)
-#endif
-
-/* Init methods, need to find nicer names for these
- * the exact names of the chipsets would be the best if someone finds it */
-#define METHOD0 0
-#define METHOD1 1
-#define METHOD2 2
-#define METHOD3 3
-
-
-/* Module parameters */
-static int debug;
-static int mode;
-
-
-/* Module parameters interface */
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Debug level");
-module_param(mode, int, 0644);
-MODULE_PARM_DESC(mode, "0 = 320x240, 1 = 160x120, 2 = 640x480");
-
-
-/* Devices supported by this driver
- * .driver_info contains the init method used by the camera */
-static struct usb_device_id device_table[] = {
-	{USB_DEVICE(0x08ca, 0x0109), .driver_info = METHOD0 },
-	{USB_DEVICE(0x041e, 0x4024), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0d64, 0x0108), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0546, 0x3187), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0d64, 0x3108), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0595, 0x4343), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0bb0, 0x500d), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0feb, 0x2004), .driver_info = METHOD0 },
-	{USB_DEVICE(0x055f, 0xb500), .driver_info = METHOD0 },
-	{USB_DEVICE(0x08ca, 0x2062), .driver_info = METHOD2 },
-	{USB_DEVICE(0x052b, 0x1a18), .driver_info = METHOD1 },
-	{USB_DEVICE(0x04c8, 0x0729), .driver_info = METHOD0 },
-	{USB_DEVICE(0x04f2, 0xa208), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0784, 0x0040), .driver_info = METHOD1 },
-	{USB_DEVICE(0x06d6, 0x0034), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0a17, 0x0062), .driver_info = METHOD2 },
-	{USB_DEVICE(0x06d6, 0x003b), .driver_info = METHOD0 },
-	{USB_DEVICE(0x0a17, 0x004e), .driver_info = METHOD2 },
-	{USB_DEVICE(0x041e, 0x405d), .driver_info = METHOD2 },
-	{USB_DEVICE(0x08ca, 0x2102), .driver_info = METHOD3 },
-	{USB_DEVICE(0x06d6, 0x003d), .driver_info = METHOD0 },
-	{}			/* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE(usb, device_table);
-
-/* frame structure */
-struct zr364xx_framei {
-	unsigned long ulState;	/* ulState:ZR364XX_READ_IDLE,
-					   ZR364XX_READ_FRAME */
-	void *lpvbits;		/* image data */
-	unsigned long cur_size;	/* current data copied to it */
-};
-
-/* image buffer structure */
-struct zr364xx_bufferi {
-	unsigned long dwFrames;			/* number of frames in buffer */
-	struct zr364xx_framei frame[FRAMES];	/* array of FRAME structures */
-};
-
-struct zr364xx_dmaqueue {
-	struct list_head	active;
-	struct zr364xx_camera	*cam;
-};
-
-struct zr364xx_pipeinfo {
-	u32 transfer_size;
-	u8 *transfer_buffer;
-	u32 state;
-	void *stream_urb;
-	void *cam;	/* back pointer to zr364xx_camera struct */
-	u32 err_count;
-	u32 idx;
-};
-
-struct zr364xx_fmt {
-	char *name;
-	u32 fourcc;
-	int depth;
-};
-
-/* image formats.  */
-static const struct zr364xx_fmt formats[] = {
-	{
-		.name = "JPG",
-		.fourcc = V4L2_PIX_FMT_JPEG,
-		.depth = 24
-	}
-};
-
-/* Camera stuff */
-struct zr364xx_camera {
-	struct usb_device *udev;	/* save off the usb device pointer */
-	struct usb_interface *interface;/* the interface for this device */
-	struct v4l2_device v4l2_dev;
-	struct v4l2_ctrl_handler ctrl_handler;
-	struct video_device vdev;	/* v4l video device */
-	struct v4l2_fh *owner;		/* owns the streaming */
-	int nb;
-	struct zr364xx_bufferi		buffer;
-	int skip;
-	int width;
-	int height;
-	int method;
-	struct mutex lock;
-
-	spinlock_t		slock;
-	struct zr364xx_dmaqueue	vidq;
-	int			last_frame;
-	int			cur_frame;
-	unsigned long		frame_count;
-	int			b_acquire;
-	struct zr364xx_pipeinfo	pipe[1];
-
-	u8			read_endpoint;
-
-	const struct zr364xx_fmt *fmt;
-	struct videobuf_queue	vb_vidq;
-	bool was_streaming;
-};
-
-/* buffer for one video frame */
-struct zr364xx_buffer {
-	/* common v4l buffer stuff -- must be first */
-	struct videobuf_buffer vb;
-	const struct zr364xx_fmt *fmt;
-};
-
-/* function used to send initialisation commands to the camera */
-static int send_control_msg(struct usb_device *udev, u8 request, u16 value,
-			    u16 index, unsigned char *cp, u16 size)
-{
-	int status;
-
-	unsigned char *transfer_buffer = kmalloc(size, GFP_KERNEL);
-	if (!transfer_buffer) {
-		dev_err(&udev->dev, "kmalloc(%d) failed\n", size);
-		return -ENOMEM;
-	}
-
-	memcpy(transfer_buffer, cp, size);
-
-	status = usb_control_msg(udev,
-				 usb_sndctrlpipe(udev, 0),
-				 request,
-				 USB_DIR_OUT | USB_TYPE_VENDOR |
-				 USB_RECIP_DEVICE, value, index,
-				 transfer_buffer, size, CTRL_TIMEOUT);
-
-	kfree(transfer_buffer);
-	return status;
-}
-
-
-/* Control messages sent to the camera to initialize it
- * and launch the capture */
-typedef struct {
-	unsigned int value;
-	unsigned int size;
-	unsigned char *bytes;
-} message;
-
-/* method 0 */
-static unsigned char m0d1[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
-static unsigned char m0d2[] = { 0, 0, 0, 0, 0, 0 };
-static unsigned char m0d3[] = { 0, 0 };
-static message m0[] = {
-	{0x1f30, 0, NULL},
-	{0xd000, 0, NULL},
-	{0x3370, sizeof(m0d1), m0d1},
-	{0x2000, 0, NULL},
-	{0x2f0f, 0, NULL},
-	{0x2610, sizeof(m0d2), m0d2},
-	{0xe107, 0, NULL},
-	{0x2502, 0, NULL},
-	{0x1f70, 0, NULL},
-	{0xd000, 0, NULL},
-	{0x9a01, sizeof(m0d3), m0d3},
-	{-1, -1, NULL}
-};
-
-/* method 1 */
-static unsigned char m1d1[] = { 0xff, 0xff };
-static unsigned char m1d2[] = { 0x00, 0x00 };
-static message m1[] = {
-	{0x1f30, 0, NULL},
-	{0xd000, 0, NULL},
-	{0xf000, 0, NULL},
-	{0x2000, 0, NULL},
-	{0x2f0f, 0, NULL},
-	{0x2650, 0, NULL},
-	{0xe107, 0, NULL},
-	{0x2502, sizeof(m1d1), m1d1},
-	{0x1f70, 0, NULL},
-	{0xd000, 0, NULL},
-	{0xd000, 0, NULL},
-	{0xd000, 0, NULL},
-	{0x9a01, sizeof(m1d2), m1d2},
-	{-1, -1, NULL}
-};
-
-/* method 2 */
-static unsigned char m2d1[] = { 0xff, 0xff };
-static message m2[] = {
-	{0x1f30, 0, NULL},
-	{0xf000, 0, NULL},
-	{0x2000, 0, NULL},
-	{0x2f0f, 0, NULL},
-	{0x2650, 0, NULL},
-	{0xe107, 0, NULL},
-	{0x2502, sizeof(m2d1), m2d1},
-	{0x1f70, 0, NULL},
-	{-1, -1, NULL}
-};
-
-/* init table */
-static message *init[4] = { m0, m1, m2, m2 };
-
-
-/* JPEG static data in header (Huffman table, etc) */
-static unsigned char header1[] = {
-	0xFF, 0xD8,
-	/*
-	0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F',
-	0x00, 0x01, 0x01, 0x00, 0x33, 0x8A, 0x00, 0x00, 0x33, 0x88,
-	*/
-	0xFF, 0xDB, 0x00, 0x84
-};
-static unsigned char header2[] = {
-	0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01,
-	0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
-	0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02,
-	0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01,
-	0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06,
-	0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1,
-	0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33,
-	0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25,
-	0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39,
-	0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54,
-	0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67,
-	0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A,
-	0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94,
-	0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
-	0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8,
-	0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA,
-	0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2,
-	0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3,
-	0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xC4, 0x00, 0x1F,
-	0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04,
-	0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5,
-	0x11, 0x00, 0x02, 0x01, 0x02, 0x04, 0x04, 0x03, 0x04, 0x07, 0x05,
-	0x04, 0x04, 0x00, 0x01, 0x02, 0x77, 0x00, 0x01, 0x02, 0x03, 0x11,
-	0x04, 0x05, 0x21, 0x31, 0x06, 0x12, 0x41, 0x51, 0x07, 0x61, 0x71,
-	0x13, 0x22, 0x32, 0x81, 0x08, 0x14, 0x42, 0x91, 0xA1, 0xB1, 0xC1,
-	0x09, 0x23, 0x33, 0x52, 0xF0, 0x15, 0x62, 0x72, 0xD1, 0x0A, 0x16,
-	0x24, 0x34, 0xE1, 0x25, 0xF1, 0x17, 0x18, 0x19, 0x1A, 0x26, 0x27,
-	0x28, 0x29, 0x2A, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44,
-	0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57,
-	0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A,
-	0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x82, 0x83, 0x84,
-	0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96,
-	0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
-	0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA,
-	0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3,
-	0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE2, 0xE3, 0xE4, 0xE5,
-	0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-	0xF8, 0xF9, 0xFA, 0xFF, 0xC0, 0x00, 0x11, 0x08, 0x00, 0xF0, 0x01,
-	0x40, 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01,
-	0xFF, 0xDA, 0x00, 0x0C, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11,
-	0x00, 0x3F, 0x00
-};
-static unsigned char header3;
-
-/* ------------------------------------------------------------------
-   Videobuf operations
-   ------------------------------------------------------------------*/
-
-static int buffer_setup(struct videobuf_queue *vq, unsigned int *count,
-			unsigned int *size)
-{
-	struct zr364xx_camera *cam = vq->priv_data;
-
-	*size = cam->width * cam->height * (cam->fmt->depth >> 3);
-
-	if (*count == 0)
-		*count = ZR364XX_DEF_BUFS;
-
-	if (*size * *count > ZR364XX_DEF_BUFS * 1024 * 1024)
-		*count = (ZR364XX_DEF_BUFS * 1024 * 1024) / *size;
-
-	return 0;
-}
-
-static void free_buffer(struct videobuf_queue *vq, struct zr364xx_buffer *buf)
-{
-	_DBG("%s\n", __func__);
-
-	if (in_interrupt())
-		BUG();
-
-	videobuf_vmalloc_free(&buf->vb);
-	buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-static int buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
-			  enum v4l2_field field)
-{
-	struct zr364xx_camera *cam = vq->priv_data;
-	struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer,
-						  vb);
-	int rc;
-
-	DBG("%s, field=%d, fmt name = %s\n", __func__, field, cam->fmt != NULL ?
-	    cam->fmt->name : "");
-	if (cam->fmt == NULL)
-		return -EINVAL;
-
-	buf->vb.size = cam->width * cam->height * (cam->fmt->depth >> 3);
-
-	if (buf->vb.baddr != 0 && buf->vb.bsize < buf->vb.size) {
-		DBG("invalid buffer prepare\n");
-		return -EINVAL;
-	}
-
-	buf->fmt = cam->fmt;
-	buf->vb.width = cam->width;
-	buf->vb.height = cam->height;
-	buf->vb.field = field;
-
-	if (buf->vb.state == VIDEOBUF_NEEDS_INIT) {
-		rc = videobuf_iolock(vq, &buf->vb, NULL);
-		if (rc < 0)
-			goto fail;
-	}
-
-	buf->vb.state = VIDEOBUF_PREPARED;
-	return 0;
-fail:
-	free_buffer(vq, buf);
-	return rc;
-}
-
-static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
-{
-	struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer,
-						  vb);
-	struct zr364xx_camera *cam = vq->priv_data;
-
-	_DBG("%s\n", __func__);
-
-	buf->vb.state = VIDEOBUF_QUEUED;
-	list_add_tail(&buf->vb.queue, &cam->vidq.active);
-}
-
-static void buffer_release(struct videobuf_queue *vq,
-			   struct videobuf_buffer *vb)
-{
-	struct zr364xx_buffer *buf = container_of(vb, struct zr364xx_buffer,
-						  vb);
-
-	_DBG("%s\n", __func__);
-	free_buffer(vq, buf);
-}
-
-static struct videobuf_queue_ops zr364xx_video_qops = {
-	.buf_setup = buffer_setup,
-	.buf_prepare = buffer_prepare,
-	.buf_queue = buffer_queue,
-	.buf_release = buffer_release,
-};
-
-/********************/
-/* V4L2 integration */
-/********************/
-static int zr364xx_vidioc_streamon(struct file *file, void *priv,
-				   enum v4l2_buf_type type);
-
-static ssize_t zr364xx_read(struct file *file, char __user *buf, size_t count,
-			    loff_t * ppos)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-	int err = 0;
-
-	_DBG("%s\n", __func__);
-
-	if (!buf)
-		return -EINVAL;
-
-	if (!count)
-		return -EINVAL;
-
-	if (mutex_lock_interruptible(&cam->lock))
-		return -ERESTARTSYS;
-
-	err = zr364xx_vidioc_streamon(file, file->private_data,
-				V4L2_BUF_TYPE_VIDEO_CAPTURE);
-	if (err == 0) {
-		DBG("%s: reading %d bytes at pos %d.\n", __func__,
-				(int) count, (int) *ppos);
-
-		/* NoMan Sux ! */
-		err = videobuf_read_one(&cam->vb_vidq, buf, count, ppos,
-					file->f_flags & O_NONBLOCK);
-	}
-	mutex_unlock(&cam->lock);
-	return err;
-}
-
-/* video buffer vmalloc implementation based partly on VIVI driver which is
- *          Copyright (c) 2006 by
- *                  Mauro Carvalho Chehab <mchehab--a.t--infradead.org>
- *                  Ted Walther <ted--a.t--enumera.com>
- *                  John Sokol <sokol--a.t--videotechnology.com>
- *                  http://v4l.videotechnology.com/
- *
- */
-static void zr364xx_fillbuff(struct zr364xx_camera *cam,
-			     struct zr364xx_buffer *buf,
-			     int jpgsize)
-{
-	int pos = 0;
-	struct timeval ts;
-	const char *tmpbuf;
-	char *vbuf = videobuf_to_vmalloc(&buf->vb);
-	unsigned long last_frame;
-
-	if (!vbuf)
-		return;
-
-	last_frame = cam->last_frame;
-	if (last_frame != -1) {
-		tmpbuf = (const char *)cam->buffer.frame[last_frame].lpvbits;
-		switch (buf->fmt->fourcc) {
-		case V4L2_PIX_FMT_JPEG:
-			buf->vb.size = jpgsize;
-			memcpy(vbuf, tmpbuf, buf->vb.size);
-			break;
-		default:
-			printk(KERN_DEBUG KBUILD_MODNAME ": unknown format?\n");
-		}
-		cam->last_frame = -1;
-	} else {
-		printk(KERN_ERR KBUILD_MODNAME ": =======no frame\n");
-		return;
-	}
-	DBG("%s: Buffer 0x%08lx size= %d\n", __func__,
-		(unsigned long)vbuf, pos);
-	/* tell v4l buffer was filled */
-
-	buf->vb.field_count = cam->frame_count * 2;
-	do_gettimeofday(&ts);
-	buf->vb.ts = ts;
-	buf->vb.state = VIDEOBUF_DONE;
-}
-
-static int zr364xx_got_frame(struct zr364xx_camera *cam, int jpgsize)
-{
-	struct zr364xx_dmaqueue *dma_q = &cam->vidq;
-	struct zr364xx_buffer *buf;
-	unsigned long flags = 0;
-	int rc = 0;
-
-	DBG("wakeup: %p\n", &dma_q);
-	spin_lock_irqsave(&cam->slock, flags);
-
-	if (list_empty(&dma_q->active)) {
-		DBG("No active queue to serve\n");
-		rc = -1;
-		goto unlock;
-	}
-	buf = list_entry(dma_q->active.next,
-			 struct zr364xx_buffer, vb.queue);
-
-	if (!waitqueue_active(&buf->vb.done)) {
-		/* no one active */
-		rc = -1;
-		goto unlock;
-	}
-	list_del(&buf->vb.queue);
-	do_gettimeofday(&buf->vb.ts);
-	DBG("[%p/%d] wakeup\n", buf, buf->vb.i);
-	zr364xx_fillbuff(cam, buf, jpgsize);
-	wake_up(&buf->vb.done);
-	DBG("wakeup [buf/i] [%p/%d]\n", buf, buf->vb.i);
-unlock:
-	spin_unlock_irqrestore(&cam->slock, flags);
-	return rc;
-}
-
-/* this function moves the usb stream read pipe data
- * into the system buffers.
- * returns 0 on success, EAGAIN if more data to process (call this
- * function again).
- */
-static int zr364xx_read_video_callback(struct zr364xx_camera *cam,
-					struct zr364xx_pipeinfo *pipe_info,
-					struct urb *purb)
-{
-	unsigned char *pdest;
-	unsigned char *psrc;
-	s32 idx = -1;
-	struct zr364xx_framei *frm;
-	int i = 0;
-	unsigned char *ptr = NULL;
-
-	_DBG("buffer to user\n");
-	idx = cam->cur_frame;
-	frm = &cam->buffer.frame[idx];
-
-	/* swap bytes if camera needs it */
-	if (cam->method == METHOD0) {
-		u16 *buf = (u16 *)pipe_info->transfer_buffer;
-		for (i = 0; i < purb->actual_length/2; i++)
-			swab16s(buf + i);
-	}
-
-	/* search done.  now find out if should be acquiring */
-	if (!cam->b_acquire) {
-		/* we found a frame, but this channel is turned off */
-		frm->ulState = ZR364XX_READ_IDLE;
-		return -EINVAL;
-	}
-
-	psrc = (u8 *)pipe_info->transfer_buffer;
-	ptr = pdest = frm->lpvbits;
-
-	if (frm->ulState == ZR364XX_READ_IDLE) {
-		frm->ulState = ZR364XX_READ_FRAME;
-		frm->cur_size = 0;
-
-		_DBG("jpeg header, ");
-		memcpy(ptr, header1, sizeof(header1));
-		ptr += sizeof(header1);
-		header3 = 0;
-		memcpy(ptr, &header3, 1);
-		ptr++;
-		memcpy(ptr, psrc, 64);
-		ptr += 64;
-		header3 = 1;
-		memcpy(ptr, &header3, 1);
-		ptr++;
-		memcpy(ptr, psrc + 64, 64);
-		ptr += 64;
-		memcpy(ptr, header2, sizeof(header2));
-		ptr += sizeof(header2);
-		memcpy(ptr, psrc + 128,
-		       purb->actual_length - 128);
-		ptr += purb->actual_length - 128;
-		_DBG("header : %d %d %d %d %d %d %d %d %d\n",
-		    psrc[0], psrc[1], psrc[2],
-		    psrc[3], psrc[4], psrc[5],
-		    psrc[6], psrc[7], psrc[8]);
-		frm->cur_size = ptr - pdest;
-	} else {
-		if (frm->cur_size + purb->actual_length > MAX_FRAME_SIZE) {
-			dev_info(&cam->udev->dev,
-				 "%s: buffer (%d bytes) too small to hold "
-				 "frame data. Discarding frame data.\n",
-				 __func__, MAX_FRAME_SIZE);
-		} else {
-			pdest += frm->cur_size;
-			memcpy(pdest, psrc, purb->actual_length);
-			frm->cur_size += purb->actual_length;
-		}
-	}
-	/*_DBG("cur_size %lu urb size %d\n", frm->cur_size,
-		purb->actual_length);*/
-
-	if (purb->actual_length < pipe_info->transfer_size) {
-		_DBG("****************Buffer[%d]full*************\n", idx);
-		cam->last_frame = cam->cur_frame;
-		cam->cur_frame++;
-		/* end of system frame ring buffer, start at zero */
-		if (cam->cur_frame == cam->buffer.dwFrames)
-			cam->cur_frame = 0;
-
-		/* frame ready */
-		/* go back to find the JPEG EOI marker */
-		ptr = pdest = frm->lpvbits;
-		ptr += frm->cur_size - 2;
-		while (ptr > pdest) {
-			if (*ptr == 0xFF && *(ptr + 1) == 0xD9
-			    && *(ptr + 2) == 0xFF)
-				break;
-			ptr--;
-		}
-		if (ptr == pdest)
-			DBG("No EOI marker\n");
-
-		/* Sometimes there is junk data in the middle of the picture,
-		 * we want to skip this bogus frames */
-		while (ptr > pdest) {
-			if (*ptr == 0xFF && *(ptr + 1) == 0xFF
-			    && *(ptr + 2) == 0xFF)
-				break;
-			ptr--;
-		}
-		if (ptr != pdest) {
-			DBG("Bogus frame ? %d\n", ++(cam->nb));
-		} else if (cam->b_acquire) {
-			/* we skip the 2 first frames which are usually buggy */
-			if (cam->skip)
-				cam->skip--;
-			else {
-				_DBG("jpeg(%lu): %d %d %d %d %d %d %d %d\n",
-				    frm->cur_size,
-				    pdest[0], pdest[1], pdest[2], pdest[3],
-				    pdest[4], pdest[5], pdest[6], pdest[7]);
-
-				zr364xx_got_frame(cam, frm->cur_size);
-			}
-		}
-		cam->frame_count++;
-		frm->ulState = ZR364XX_READ_IDLE;
-		frm->cur_size = 0;
-	}
-	/* done successfully */
-	return 0;
-}
-
-static int zr364xx_vidioc_querycap(struct file *file, void *priv,
-				   struct v4l2_capability *cap)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-
-	strlcpy(cap->driver, DRIVER_DESC, sizeof(cap->driver));
-	strlcpy(cap->card, cam->udev->product, sizeof(cap->card));
-	strlcpy(cap->bus_info, dev_name(&cam->udev->dev),
-		sizeof(cap->bus_info));
-	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE |
-			    V4L2_CAP_READWRITE |
-			    V4L2_CAP_STREAMING;
-	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
-
-	return 0;
-}
-
-static int zr364xx_vidioc_enum_input(struct file *file, void *priv,
-				     struct v4l2_input *i)
-{
-	if (i->index != 0)
-		return -EINVAL;
-	strcpy(i->name, DRIVER_DESC " Camera");
-	i->type = V4L2_INPUT_TYPE_CAMERA;
-	return 0;
-}
-
-static int zr364xx_vidioc_g_input(struct file *file, void *priv,
-				  unsigned int *i)
-{
-	*i = 0;
-	return 0;
-}
-
-static int zr364xx_vidioc_s_input(struct file *file, void *priv,
-				  unsigned int i)
-{
-	if (i != 0)
-		return -EINVAL;
-	return 0;
-}
-
-static int zr364xx_s_ctrl(struct v4l2_ctrl *ctrl)
-{
-	struct zr364xx_camera *cam =
-		container_of(ctrl->handler, struct zr364xx_camera, ctrl_handler);
-	int temp;
-
-	switch (ctrl->id) {
-	case V4L2_CID_BRIGHTNESS:
-		/* hardware brightness */
-		send_control_msg(cam->udev, 1, 0x2001, 0, NULL, 0);
-		temp = (0x60 << 8) + 127 - ctrl->val;
-		send_control_msg(cam->udev, 1, temp, 0, NULL, 0);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int zr364xx_vidioc_enum_fmt_vid_cap(struct file *file,
-				       void *priv, struct v4l2_fmtdesc *f)
-{
-	if (f->index > 0)
-		return -EINVAL;
-	f->flags = V4L2_FMT_FLAG_COMPRESSED;
-	strcpy(f->description, formats[0].name);
-	f->pixelformat = formats[0].fourcc;
-	return 0;
-}
-
-static char *decode_fourcc(__u32 pixelformat, char *buf)
-{
-	buf[0] = pixelformat & 0xff;
-	buf[1] = (pixelformat >> 8) & 0xff;
-	buf[2] = (pixelformat >> 16) & 0xff;
-	buf[3] = (pixelformat >> 24) & 0xff;
-	buf[4] = '\0';
-	return buf;
-}
-
-static int zr364xx_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
-				      struct v4l2_format *f)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-	char pixelformat_name[5];
-
-	if (cam == NULL)
-		return -ENODEV;
-
-	if (f->fmt.pix.pixelformat != V4L2_PIX_FMT_JPEG) {
-		DBG("%s: unsupported pixelformat V4L2_PIX_FMT_%s\n", __func__,
-		    decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name));
-		return -EINVAL;
-	}
-
-	if (!(f->fmt.pix.width == 160 && f->fmt.pix.height == 120) &&
-	    !(f->fmt.pix.width == 640 && f->fmt.pix.height == 480)) {
-		f->fmt.pix.width = 320;
-		f->fmt.pix.height = 240;
-	}
-
-	f->fmt.pix.field = V4L2_FIELD_NONE;
-	f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
-	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
-	f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
-	f->fmt.pix.priv = 0;
-	DBG("%s: V4L2_PIX_FMT_%s (%d) ok!\n", __func__,
-	    decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name),
-	    f->fmt.pix.field);
-	return 0;
-}
-
-static int zr364xx_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
-				    struct v4l2_format *f)
-{
-	struct zr364xx_camera *cam;
-
-	if (file == NULL)
-		return -ENODEV;
-	cam = video_drvdata(file);
-
-	f->fmt.pix.pixelformat = formats[0].fourcc;
-	f->fmt.pix.field = V4L2_FIELD_NONE;
-	f->fmt.pix.width = cam->width;
-	f->fmt.pix.height = cam->height;
-	f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
-	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
-	f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
-	f->fmt.pix.priv = 0;
-	return 0;
-}
-
-static int zr364xx_vidioc_s_fmt_vid_cap(struct file *file, void *priv,
-				    struct v4l2_format *f)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-	struct videobuf_queue *q = &cam->vb_vidq;
-	char pixelformat_name[5];
-	int ret = zr364xx_vidioc_try_fmt_vid_cap(file, cam, f);
-	int i;
-
-	if (ret < 0)
-		return ret;
-
-	mutex_lock(&q->vb_lock);
-
-	if (videobuf_queue_is_busy(&cam->vb_vidq)) {
-		DBG("%s queue busy\n", __func__);
-		ret = -EBUSY;
-		goto out;
-	}
-
-	if (cam->owner) {
-		DBG("%s can't change format after started\n", __func__);
-		ret = -EBUSY;
-		goto out;
-	}
-
-	cam->width = f->fmt.pix.width;
-	cam->height = f->fmt.pix.height;
-	DBG("%s: %dx%d mode selected\n", __func__,
-		 cam->width, cam->height);
-	f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
-	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
-	f->fmt.pix.colorspace = V4L2_COLORSPACE_JPEG;
-	f->fmt.pix.priv = 0;
-	cam->vb_vidq.field = f->fmt.pix.field;
-
-	if (f->fmt.pix.width == 160 && f->fmt.pix.height == 120)
-		mode = 1;
-	else if (f->fmt.pix.width == 640 && f->fmt.pix.height == 480)
-		mode = 2;
-	else
-		mode = 0;
-
-	m0d1[0] = mode;
-	m1[2].value = 0xf000 + mode;
-	m2[1].value = 0xf000 + mode;
-
-	/* special case for METHOD3, the modes are different */
-	if (cam->method == METHOD3) {
-		switch (mode) {
-		case 1:
-			m2[1].value = 0xf000 + 4;
-			break;
-		case 2:
-			m2[1].value = 0xf000 + 0;
-			break;
-		default:
-			m2[1].value = 0xf000 + 1;
-			break;
-		}
-	}
-
-	header2[437] = cam->height / 256;
-	header2[438] = cam->height % 256;
-	header2[439] = cam->width / 256;
-	header2[440] = cam->width % 256;
-
-	for (i = 0; init[cam->method][i].size != -1; i++) {
-		ret =
-		    send_control_msg(cam->udev, 1, init[cam->method][i].value,
-				     0, init[cam->method][i].bytes,
-				     init[cam->method][i].size);
-		if (ret < 0) {
-			dev_err(&cam->udev->dev,
-			   "error during resolution change sequence: %d\n", i);
-			goto out;
-		}
-	}
-
-	/* Added some delay here, since opening/closing the camera quickly,
-	 * like Ekiga does during its startup, can crash the webcam
-	 */
-	mdelay(100);
-	cam->skip = 2;
-	ret = 0;
-
-out:
-	mutex_unlock(&q->vb_lock);
-
-	DBG("%s: V4L2_PIX_FMT_%s (%d) ok!\n", __func__,
-	    decode_fourcc(f->fmt.pix.pixelformat, pixelformat_name),
-	    f->fmt.pix.field);
-	return ret;
-}
-
-static int zr364xx_vidioc_reqbufs(struct file *file, void *priv,
-			  struct v4l2_requestbuffers *p)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-
-	if (cam->owner && cam->owner != priv)
-		return -EBUSY;
-	return videobuf_reqbufs(&cam->vb_vidq, p);
-}
-
-static int zr364xx_vidioc_querybuf(struct file *file,
-				void *priv,
-				struct v4l2_buffer *p)
-{
-	int rc;
-	struct zr364xx_camera *cam = video_drvdata(file);
-	rc = videobuf_querybuf(&cam->vb_vidq, p);
-	return rc;
-}
-
-static int zr364xx_vidioc_qbuf(struct file *file,
-				void *priv,
-				struct v4l2_buffer *p)
-{
-	int rc;
-	struct zr364xx_camera *cam = video_drvdata(file);
-	_DBG("%s\n", __func__);
-	if (cam->owner && cam->owner != priv)
-		return -EBUSY;
-	rc = videobuf_qbuf(&cam->vb_vidq, p);
-	return rc;
-}
-
-static int zr364xx_vidioc_dqbuf(struct file *file,
-				void *priv,
-				struct v4l2_buffer *p)
-{
-	int rc;
-	struct zr364xx_camera *cam = video_drvdata(file);
-	_DBG("%s\n", __func__);
-	if (cam->owner && cam->owner != priv)
-		return -EBUSY;
-	rc = videobuf_dqbuf(&cam->vb_vidq, p, file->f_flags & O_NONBLOCK);
-	return rc;
-}
-
-static void read_pipe_completion(struct urb *purb)
-{
-	struct zr364xx_pipeinfo *pipe_info;
-	struct zr364xx_camera *cam;
-	int pipe;
-
-	pipe_info = purb->context;
-	_DBG("%s %p, status %d\n", __func__, purb, purb->status);
-	if (pipe_info == NULL) {
-		printk(KERN_ERR KBUILD_MODNAME ": no context!\n");
-		return;
-	}
-
-	cam = pipe_info->cam;
-	if (cam == NULL) {
-		printk(KERN_ERR KBUILD_MODNAME ": no context!\n");
-		return;
-	}
-
-	/* if shutting down, do not resubmit, exit immediately */
-	if (purb->status == -ESHUTDOWN) {
-		DBG("%s, err shutdown\n", __func__);
-		pipe_info->err_count++;
-		return;
-	}
-
-	if (pipe_info->state == 0) {
-		DBG("exiting USB pipe\n");
-		return;
-	}
-
-	if (purb->actual_length < 0 ||
-	    purb->actual_length > pipe_info->transfer_size) {
-		dev_err(&cam->udev->dev, "wrong number of bytes\n");
-		return;
-	}
-
-	if (purb->status == 0)
-		zr364xx_read_video_callback(cam, pipe_info, purb);
-	else {
-		pipe_info->err_count++;
-		DBG("%s: failed URB %d\n", __func__, purb->status);
-	}
-
-	pipe = usb_rcvbulkpipe(cam->udev, cam->read_endpoint);
-
-	/* reuse urb */
-	usb_fill_bulk_urb(pipe_info->stream_urb, cam->udev,
-			  pipe,
-			  pipe_info->transfer_buffer,
-			  pipe_info->transfer_size,
-			  read_pipe_completion, pipe_info);
-
-	if (pipe_info->state != 0) {
-		purb->status = usb_submit_urb(pipe_info->stream_urb,
-					      GFP_ATOMIC);
-
-		if (purb->status)
-			dev_err(&cam->udev->dev,
-				"error submitting urb (error=%i)\n",
-				purb->status);
-	} else
-		DBG("read pipe complete state 0\n");
-}
-
-static int zr364xx_start_readpipe(struct zr364xx_camera *cam)
-{
-	int pipe;
-	int retval;
-	struct zr364xx_pipeinfo *pipe_info = cam->pipe;
-	pipe = usb_rcvbulkpipe(cam->udev, cam->read_endpoint);
-	DBG("%s: start pipe IN x%x\n", __func__, cam->read_endpoint);
-
-	pipe_info->state = 1;
-	pipe_info->err_count = 0;
-	pipe_info->stream_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!pipe_info->stream_urb) {
-		dev_err(&cam->udev->dev, "ReadStream: Unable to alloc URB\n");
-		return -ENOMEM;
-	}
-	/* transfer buffer allocated in board_init */
-	usb_fill_bulk_urb(pipe_info->stream_urb, cam->udev,
-			  pipe,
-			  pipe_info->transfer_buffer,
-			  pipe_info->transfer_size,
-			  read_pipe_completion, pipe_info);
-
-	DBG("submitting URB %p\n", pipe_info->stream_urb);
-	retval = usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL);
-	if (retval) {
-		printk(KERN_ERR KBUILD_MODNAME ": start read pipe failed\n");
-		return retval;
-	}
-
-	return 0;
-}
-
-static void zr364xx_stop_readpipe(struct zr364xx_camera *cam)
-{
-	struct zr364xx_pipeinfo *pipe_info;
-
-	if (cam == NULL) {
-		printk(KERN_ERR KBUILD_MODNAME ": invalid device\n");
-		return;
-	}
-	DBG("stop read pipe\n");
-	pipe_info = cam->pipe;
-	if (pipe_info) {
-		if (pipe_info->state != 0)
-			pipe_info->state = 0;
-
-		if (pipe_info->stream_urb) {
-			/* cancel urb */
-			usb_kill_urb(pipe_info->stream_urb);
-			usb_free_urb(pipe_info->stream_urb);
-			pipe_info->stream_urb = NULL;
-		}
-	}
-	return;
-}
-
-/* starts acquisition process */
-static int zr364xx_start_acquire(struct zr364xx_camera *cam)
-{
-	int j;
-
-	DBG("start acquire\n");
-
-	cam->last_frame = -1;
-	cam->cur_frame = 0;
-	for (j = 0; j < FRAMES; j++) {
-		cam->buffer.frame[j].ulState = ZR364XX_READ_IDLE;
-		cam->buffer.frame[j].cur_size = 0;
-	}
-	cam->b_acquire = 1;
-	return 0;
-}
-
-static inline int zr364xx_stop_acquire(struct zr364xx_camera *cam)
-{
-	cam->b_acquire = 0;
-	return 0;
-}
-
-static int zr364xx_prepare(struct zr364xx_camera *cam)
-{
-	int res;
-	int i, j;
-
-	for (i = 0; init[cam->method][i].size != -1; i++) {
-		res = send_control_msg(cam->udev, 1, init[cam->method][i].value,
-				     0, init[cam->method][i].bytes,
-				     init[cam->method][i].size);
-		if (res < 0) {
-			dev_err(&cam->udev->dev,
-				"error during open sequence: %d\n", i);
-			return res;
-		}
-	}
-
-	cam->skip = 2;
-	cam->last_frame = -1;
-	cam->cur_frame = 0;
-	cam->frame_count = 0;
-	for (j = 0; j < FRAMES; j++) {
-		cam->buffer.frame[j].ulState = ZR364XX_READ_IDLE;
-		cam->buffer.frame[j].cur_size = 0;
-	}
-	v4l2_ctrl_handler_setup(&cam->ctrl_handler);
-	return 0;
-}
-
-static int zr364xx_vidioc_streamon(struct file *file, void *priv,
-				   enum v4l2_buf_type type)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-	int res;
-
-	DBG("%s\n", __func__);
-
-	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-
-	if (cam->owner && cam->owner != priv)
-		return -EBUSY;
-
-	res = zr364xx_prepare(cam);
-	if (res)
-		return res;
-	res = videobuf_streamon(&cam->vb_vidq);
-	if (res == 0) {
-		zr364xx_start_acquire(cam);
-		cam->owner = file->private_data;
-	}
-	return res;
-}
-
-static int zr364xx_vidioc_streamoff(struct file *file, void *priv,
-				    enum v4l2_buf_type type)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-
-	DBG("%s\n", __func__);
-	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
-		return -EINVAL;
-	if (cam->owner && cam->owner != priv)
-		return -EBUSY;
-	zr364xx_stop_acquire(cam);
-	return videobuf_streamoff(&cam->vb_vidq);
-}
-
-
-/* open the camera */
-static int zr364xx_open(struct file *file)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-	int err;
-
-	DBG("%s\n", __func__);
-
-	if (mutex_lock_interruptible(&cam->lock))
-		return -ERESTARTSYS;
-
-	err = v4l2_fh_open(file);
-	if (err)
-		goto out;
-
-	/* Added some delay here, since opening/closing the camera quickly,
-	 * like Ekiga does during its startup, can crash the webcam
-	 */
-	mdelay(100);
-	err = 0;
-
-out:
-	mutex_unlock(&cam->lock);
-	DBG("%s: %d\n", __func__, err);
-	return err;
-}
-
-static void zr364xx_release(struct v4l2_device *v4l2_dev)
-{
-	struct zr364xx_camera *cam =
-		container_of(v4l2_dev, struct zr364xx_camera, v4l2_dev);
-	unsigned long i;
-
-	v4l2_device_unregister(&cam->v4l2_dev);
-
-	videobuf_mmap_free(&cam->vb_vidq);
-
-	/* release sys buffers */
-	for (i = 0; i < FRAMES; i++) {
-		if (cam->buffer.frame[i].lpvbits) {
-			DBG("vfree %p\n", cam->buffer.frame[i].lpvbits);
-			vfree(cam->buffer.frame[i].lpvbits);
-		}
-		cam->buffer.frame[i].lpvbits = NULL;
-	}
-
-	v4l2_ctrl_handler_free(&cam->ctrl_handler);
-	/* release transfer buffer */
-	kfree(cam->pipe->transfer_buffer);
-	kfree(cam);
-}
-
-/* release the camera */
-static int zr364xx_close(struct file *file)
-{
-	struct zr364xx_camera *cam;
-	struct usb_device *udev;
-	int i;
-
-	DBG("%s\n", __func__);
-	cam = video_drvdata(file);
-
-	mutex_lock(&cam->lock);
-	udev = cam->udev;
-
-	if (file->private_data == cam->owner) {
-		/* turn off stream */
-		if (cam->b_acquire)
-			zr364xx_stop_acquire(cam);
-		videobuf_streamoff(&cam->vb_vidq);
-
-		for (i = 0; i < 2; i++) {
-			send_control_msg(udev, 1, init[cam->method][i].value,
-					0, init[cam->method][i].bytes,
-					init[cam->method][i].size);
-		}
-		cam->owner = NULL;
-	}
-
-	/* Added some delay here, since opening/closing the camera quickly,
-	 * like Ekiga does during its startup, can crash the webcam
-	 */
-	mdelay(100);
-	mutex_unlock(&cam->lock);
-	return v4l2_fh_release(file);
-}
-
-
-static int zr364xx_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-	int ret;
-
-	if (cam == NULL) {
-		DBG("%s: cam == NULL\n", __func__);
-		return -ENODEV;
-	}
-	DBG("mmap called, vma=0x%08lx\n", (unsigned long)vma);
-
-	ret = videobuf_mmap_mapper(&cam->vb_vidq, vma);
-
-	DBG("vma start=0x%08lx, size=%ld, ret=%d\n",
-		(unsigned long)vma->vm_start,
-		(unsigned long)vma->vm_end - (unsigned long)vma->vm_start, ret);
-	return ret;
-}
-
-static unsigned int zr364xx_poll(struct file *file,
-			       struct poll_table_struct *wait)
-{
-	struct zr364xx_camera *cam = video_drvdata(file);
-	struct videobuf_queue *q = &cam->vb_vidq;
-	unsigned res = v4l2_ctrl_poll(file, wait);
-
-	_DBG("%s\n", __func__);
-
-	return res | videobuf_poll_stream(file, q, wait);
-}
-
-static const struct v4l2_ctrl_ops zr364xx_ctrl_ops = {
-	.s_ctrl = zr364xx_s_ctrl,
-};
-
-static const struct v4l2_file_operations zr364xx_fops = {
-	.owner = THIS_MODULE,
-	.open = zr364xx_open,
-	.release = zr364xx_close,
-	.read = zr364xx_read,
-	.mmap = zr364xx_mmap,
-	.unlocked_ioctl = video_ioctl2,
-	.poll = zr364xx_poll,
-};
-
-static const struct v4l2_ioctl_ops zr364xx_ioctl_ops = {
-	.vidioc_querycap	= zr364xx_vidioc_querycap,
-	.vidioc_enum_fmt_vid_cap = zr364xx_vidioc_enum_fmt_vid_cap,
-	.vidioc_try_fmt_vid_cap	= zr364xx_vidioc_try_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap	= zr364xx_vidioc_s_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap	= zr364xx_vidioc_g_fmt_vid_cap,
-	.vidioc_enum_input	= zr364xx_vidioc_enum_input,
-	.vidioc_g_input		= zr364xx_vidioc_g_input,
-	.vidioc_s_input		= zr364xx_vidioc_s_input,
-	.vidioc_streamon	= zr364xx_vidioc_streamon,
-	.vidioc_streamoff	= zr364xx_vidioc_streamoff,
-	.vidioc_reqbufs         = zr364xx_vidioc_reqbufs,
-	.vidioc_querybuf        = zr364xx_vidioc_querybuf,
-	.vidioc_qbuf            = zr364xx_vidioc_qbuf,
-	.vidioc_dqbuf           = zr364xx_vidioc_dqbuf,
-	.vidioc_log_status      = v4l2_ctrl_log_status,
-	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
-	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
-};
-
-static struct video_device zr364xx_template = {
-	.name = DRIVER_DESC,
-	.fops = &zr364xx_fops,
-	.ioctl_ops = &zr364xx_ioctl_ops,
-	.release = video_device_release_empty,
-};
-
-
-
-/*******************/
-/* USB integration */
-/*******************/
-static int zr364xx_board_init(struct zr364xx_camera *cam)
-{
-	struct zr364xx_pipeinfo *pipe = cam->pipe;
-	unsigned long i;
-
-	DBG("board init: %p\n", cam);
-	memset(pipe, 0, sizeof(*pipe));
-	pipe->cam = cam;
-	pipe->transfer_size = BUFFER_SIZE;
-
-	pipe->transfer_buffer = kzalloc(pipe->transfer_size,
-					GFP_KERNEL);
-	if (pipe->transfer_buffer == NULL) {
-		DBG("out of memory!\n");
-		return -ENOMEM;
-	}
-
-	cam->b_acquire = 0;
-	cam->frame_count = 0;
-
-	/*** start create system buffers ***/
-	for (i = 0; i < FRAMES; i++) {
-		/* always allocate maximum size for system buffers */
-		cam->buffer.frame[i].lpvbits = vmalloc(MAX_FRAME_SIZE);
-
-		DBG("valloc %p, idx %lu, pdata %p\n",
-			&cam->buffer.frame[i], i,
-			cam->buffer.frame[i].lpvbits);
-		if (cam->buffer.frame[i].lpvbits == NULL) {
-			printk(KERN_INFO KBUILD_MODNAME ": out of memory. "
-			       "Using less frames\n");
-			break;
-		}
-	}
-
-	if (i == 0) {
-		printk(KERN_INFO KBUILD_MODNAME ": out of memory. Aborting\n");
-		kfree(cam->pipe->transfer_buffer);
-		cam->pipe->transfer_buffer = NULL;
-		return -ENOMEM;
-	} else
-		cam->buffer.dwFrames = i;
-
-	/* make sure internal states are set */
-	for (i = 0; i < FRAMES; i++) {
-		cam->buffer.frame[i].ulState = ZR364XX_READ_IDLE;
-		cam->buffer.frame[i].cur_size = 0;
-	}
-
-	cam->cur_frame = 0;
-	cam->last_frame = -1;
-	/*** end create system buffers ***/
-
-	/* start read pipe */
-	zr364xx_start_readpipe(cam);
-	DBG(": board initialized\n");
-	return 0;
-}
-
-static int zr364xx_probe(struct usb_interface *intf,
-			 const struct usb_device_id *id)
-{
-	struct usb_device *udev = interface_to_usbdev(intf);
-	struct zr364xx_camera *cam = NULL;
-	struct usb_host_interface *iface_desc;
-	struct usb_endpoint_descriptor *endpoint;
-	struct v4l2_ctrl_handler *hdl;
-	int err;
-	int i;
-
-	DBG("probing...\n");
-
-	dev_info(&intf->dev, DRIVER_DESC " compatible webcam plugged\n");
-	dev_info(&intf->dev, "model %04x:%04x detected\n",
-		 le16_to_cpu(udev->descriptor.idVendor),
-		 le16_to_cpu(udev->descriptor.idProduct));
-
-	cam = kzalloc(sizeof(struct zr364xx_camera), GFP_KERNEL);
-	if (cam == NULL) {
-		dev_err(&udev->dev, "cam: out of memory !\n");
-		return -ENOMEM;
-	}
-
-	cam->v4l2_dev.release = zr364xx_release;
-	err = v4l2_device_register(&intf->dev, &cam->v4l2_dev);
-	if (err < 0) {
-		dev_err(&udev->dev, "couldn't register v4l2_device\n");
-		kfree(cam);
-		return err;
-	}
-	hdl = &cam->ctrl_handler;
-	v4l2_ctrl_handler_init(hdl, 1);
-	v4l2_ctrl_new_std(hdl, &zr364xx_ctrl_ops,
-			  V4L2_CID_BRIGHTNESS, 0, 127, 1, 64);
-	if (hdl->error) {
-		err = hdl->error;
-		dev_err(&udev->dev, "couldn't register control\n");
-		goto fail;
-	}
-	/* save the init method used by this camera */
-	cam->method = id->driver_info;
-	mutex_init(&cam->lock);
-	cam->vdev = zr364xx_template;
-	cam->vdev.lock = &cam->lock;
-	cam->vdev.v4l2_dev = &cam->v4l2_dev;
-	cam->vdev.ctrl_handler = &cam->ctrl_handler;
-	set_bit(V4L2_FL_USE_FH_PRIO, &cam->vdev.flags);
-	video_set_drvdata(&cam->vdev, cam);
-	if (debug)
-		cam->vdev.debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
-
-	cam->udev = udev;
-
-	switch (mode) {
-	case 1:
-		dev_info(&udev->dev, "160x120 mode selected\n");
-		cam->width = 160;
-		cam->height = 120;
-		break;
-	case 2:
-		dev_info(&udev->dev, "640x480 mode selected\n");
-		cam->width = 640;
-		cam->height = 480;
-		break;
-	default:
-		dev_info(&udev->dev, "320x240 mode selected\n");
-		cam->width = 320;
-		cam->height = 240;
-		break;
-	}
-
-	m0d1[0] = mode;
-	m1[2].value = 0xf000 + mode;
-	m2[1].value = 0xf000 + mode;
-
-	/* special case for METHOD3, the modes are different */
-	if (cam->method == METHOD3) {
-		switch (mode) {
-		case 1:
-			m2[1].value = 0xf000 + 4;
-			break;
-		case 2:
-			m2[1].value = 0xf000 + 0;
-			break;
-		default:
-			m2[1].value = 0xf000 + 1;
-			break;
-		}
-	}
-
-	header2[437] = cam->height / 256;
-	header2[438] = cam->height % 256;
-	header2[439] = cam->width / 256;
-	header2[440] = cam->width % 256;
-
-	cam->nb = 0;
-
-	DBG("dev: %p, udev %p interface %p\n", cam, cam->udev, intf);
-
-	/* set up the endpoint information  */
-	iface_desc = intf->cur_altsetting;
-	DBG("num endpoints %d\n", iface_desc->desc.bNumEndpoints);
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
-		endpoint = &iface_desc->endpoint[i].desc;
-		if (!cam->read_endpoint && usb_endpoint_is_bulk_in(endpoint)) {
-			/* we found the bulk in endpoint */
-			cam->read_endpoint = endpoint->bEndpointAddress;
-		}
-	}
-
-	if (!cam->read_endpoint) {
-		err = -ENOMEM;
-		dev_err(&intf->dev, "Could not find bulk-in endpoint\n");
-		goto fail;
-	}
-
-	/* v4l */
-	INIT_LIST_HEAD(&cam->vidq.active);
-	cam->vidq.cam = cam;
-
-	usb_set_intfdata(intf, cam);
-
-	/* load zr364xx board specific */
-	err = zr364xx_board_init(cam);
-	if (!err)
-		err = v4l2_ctrl_handler_setup(hdl);
-	if (err)
-		goto fail;
-
-	spin_lock_init(&cam->slock);
-
-	cam->fmt = formats;
-
-	videobuf_queue_vmalloc_init(&cam->vb_vidq, &zr364xx_video_qops,
-				    NULL, &cam->slock,
-				    V4L2_BUF_TYPE_VIDEO_CAPTURE,
-				    V4L2_FIELD_NONE,
-				    sizeof(struct zr364xx_buffer), cam, &cam->lock);
-
-	err = video_register_device(&cam->vdev, VFL_TYPE_GRABBER, -1);
-	if (err) {
-		dev_err(&udev->dev, "video_register_device failed\n");
-		goto fail;
-	}
-
-	dev_info(&udev->dev, DRIVER_DESC " controlling device %s\n",
-		 video_device_node_name(&cam->vdev));
-	return 0;
-
-fail:
-	v4l2_ctrl_handler_free(hdl);
-	v4l2_device_unregister(&cam->v4l2_dev);
-	kfree(cam);
-	return err;
-}
-
-
-static void zr364xx_disconnect(struct usb_interface *intf)
-{
-	struct zr364xx_camera *cam = usb_get_intfdata(intf);
-
-	mutex_lock(&cam->lock);
-	usb_set_intfdata(intf, NULL);
-	dev_info(&intf->dev, DRIVER_DESC " webcam unplugged\n");
-	video_unregister_device(&cam->vdev);
-	v4l2_device_disconnect(&cam->v4l2_dev);
-
-	/* stops the read pipe if it is running */
-	if (cam->b_acquire)
-		zr364xx_stop_acquire(cam);
-
-	zr364xx_stop_readpipe(cam);
-	mutex_unlock(&cam->lock);
-	v4l2_device_put(&cam->v4l2_dev);
-}
-
-
-#ifdef CONFIG_PM
-static int zr364xx_suspend(struct usb_interface *intf, pm_message_t message)
-{
-	struct zr364xx_camera *cam = usb_get_intfdata(intf);
-
-	cam->was_streaming = cam->b_acquire;
-	if (!cam->was_streaming)
-		return 0;
-	zr364xx_stop_acquire(cam);
-	zr364xx_stop_readpipe(cam);
-	return 0;
-}
-
-static int zr364xx_resume(struct usb_interface *intf)
-{
-	struct zr364xx_camera *cam = usb_get_intfdata(intf);
-	int res;
-
-	if (!cam->was_streaming)
-		return 0;
-
-	zr364xx_start_readpipe(cam);
-	res = zr364xx_prepare(cam);
-	if (!res)
-		zr364xx_start_acquire(cam);
-	return res;
-}
-#endif
-
-/**********************/
-/* Module integration */
-/**********************/
-
-static struct usb_driver zr364xx_driver = {
-	.name = "zr364xx",
-	.probe = zr364xx_probe,
-	.disconnect = zr364xx_disconnect,
-#ifdef CONFIG_PM
-	.suspend = zr364xx_suspend,
-	.resume = zr364xx_resume,
-	.reset_resume = zr364xx_resume,
-#endif
-	.id_table = device_table
-};
-
-module_usb_driver(zr364xx_driver);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRIVER_VERSION);