[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>

1 files changed, 0 insertions, 1643 deletions

diff --git a/drivers/media/video/zr364xx.c b/drivers/media/video/zr364xx.c
deleted file mode 100644
index 9afab35..0000000
--- 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);