[media] v4l: move v4l2 core into a separate directory

Currently, the v4l2 core is mixed together with other non-core drivers.
Move them into a separate directory.

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

1 files changed, 0 insertions, 1003 deletions

diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
deleted file mode 100644
index 71237f5..0000000
--- a/drivers/media/video/v4l2-dev.c
+++ /dev/null
@@ -1,1003 +0,0 @@
-/*
- * Video capture interface for Linux version 2
- *
- *	A generic video device interface for the LINUX operating system
- *	using a set of device structures/vectors for low level operations.
- *
- *	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.
- *
- * Authors:	Alan Cox, <alan@lxorguk.ukuu.org.uk> (version 1)
- *              Mauro Carvalho Chehab <mchehab@infradead.org> (version 2)
- *
- * Fixes:	20000516  Claudio Matsuoka <claudio@conectiva.com>
- *		- Added procfs support
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kmod.h>
-#include <linux/slab.h>
-#include <asm/uaccess.h>
-
-#include <media/v4l2-common.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-
-#define VIDEO_NUM_DEVICES	256
-#define VIDEO_NAME              "video4linux"
-
-/*
- *	sysfs stuff
- */
-
-static ssize_t show_index(struct device *cd,
-			 struct device_attribute *attr, char *buf)
-{
-	struct video_device *vdev = to_video_device(cd);
-
-	return sprintf(buf, "%i\n", vdev->index);
-}
-
-static ssize_t show_debug(struct device *cd,
-			 struct device_attribute *attr, char *buf)
-{
-	struct video_device *vdev = to_video_device(cd);
-
-	return sprintf(buf, "%i\n", vdev->debug);
-}
-
-static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
-		   const char *buf, size_t len)
-{
-	struct video_device *vdev = to_video_device(cd);
-	int res = 0;
-	u16 value;
-
-	res = kstrtou16(buf, 0, &value);
-	if (res)
-		return res;
-
-	vdev->debug = value;
-	return len;
-}
-
-static ssize_t show_name(struct device *cd,
-			 struct device_attribute *attr, char *buf)
-{
-	struct video_device *vdev = to_video_device(cd);
-
-	return sprintf(buf, "%.*s\n", (int)sizeof(vdev->name), vdev->name);
-}
-
-static struct device_attribute video_device_attrs[] = {
-	__ATTR(name, S_IRUGO, show_name, NULL),
-	__ATTR(debug, 0644, show_debug, set_debug),
-	__ATTR(index, S_IRUGO, show_index, NULL),
-	__ATTR_NULL
-};
-
-/*
- *	Active devices
- */
-static struct video_device *video_device[VIDEO_NUM_DEVICES];
-static DEFINE_MUTEX(videodev_lock);
-static DECLARE_BITMAP(devnode_nums[VFL_TYPE_MAX], VIDEO_NUM_DEVICES);
-
-/* Device node utility functions */
-
-/* Note: these utility functions all assume that vfl_type is in the range
-   [0, VFL_TYPE_MAX-1]. */
-
-#ifdef CONFIG_VIDEO_FIXED_MINOR_RANGES
-/* Return the bitmap corresponding to vfl_type. */
-static inline unsigned long *devnode_bits(int vfl_type)
-{
-	/* Any types not assigned to fixed minor ranges must be mapped to
-	   one single bitmap for the purposes of finding a free node number
-	   since all those unassigned types use the same minor range. */
-	int idx = (vfl_type > VFL_TYPE_RADIO) ? VFL_TYPE_MAX - 1 : vfl_type;
-
-	return devnode_nums[idx];
-}
-#else
-/* Return the bitmap corresponding to vfl_type. */
-static inline unsigned long *devnode_bits(int vfl_type)
-{
-	return devnode_nums[vfl_type];
-}
-#endif
-
-/* Mark device node number vdev->num as used */
-static inline void devnode_set(struct video_device *vdev)
-{
-	set_bit(vdev->num, devnode_bits(vdev->vfl_type));
-}
-
-/* Mark device node number vdev->num as unused */
-static inline void devnode_clear(struct video_device *vdev)
-{
-	clear_bit(vdev->num, devnode_bits(vdev->vfl_type));
-}
-
-/* Try to find a free device node number in the range [from, to> */
-static inline int devnode_find(struct video_device *vdev, int from, int to)
-{
-	return find_next_zero_bit(devnode_bits(vdev->vfl_type), to, from);
-}
-
-struct video_device *video_device_alloc(void)
-{
-	return kzalloc(sizeof(struct video_device), GFP_KERNEL);
-}
-EXPORT_SYMBOL(video_device_alloc);
-
-void video_device_release(struct video_device *vdev)
-{
-	kfree(vdev);
-}
-EXPORT_SYMBOL(video_device_release);
-
-void video_device_release_empty(struct video_device *vdev)
-{
-	/* Do nothing */
-	/* Only valid when the video_device struct is a static. */
-}
-EXPORT_SYMBOL(video_device_release_empty);
-
-static inline void video_get(struct video_device *vdev)
-{
-	get_device(&vdev->dev);
-}
-
-static inline void video_put(struct video_device *vdev)
-{
-	put_device(&vdev->dev);
-}
-
-/* Called when the last user of the video device exits. */
-static void v4l2_device_release(struct device *cd)
-{
-	struct video_device *vdev = to_video_device(cd);
-	struct v4l2_device *v4l2_dev = vdev->v4l2_dev;
-
-	mutex_lock(&videodev_lock);
-	if (WARN_ON(video_device[vdev->minor] != vdev)) {
-		/* should not happen */
-		mutex_unlock(&videodev_lock);
-		return;
-	}
-
-	/* Free up this device for reuse */
-	video_device[vdev->minor] = NULL;
-
-	/* Delete the cdev on this minor as well */
-	cdev_del(vdev->cdev);
-	/* Just in case some driver tries to access this from
-	   the release() callback. */
-	vdev->cdev = NULL;
-
-	/* Mark device node number as free */
-	devnode_clear(vdev);
-
-	mutex_unlock(&videodev_lock);
-
-#if defined(CONFIG_MEDIA_CONTROLLER)
-	if (v4l2_dev && v4l2_dev->mdev &&
-	    vdev->vfl_type != VFL_TYPE_SUBDEV)
-		media_device_unregister_entity(&vdev->entity);
-#endif
-
-	/* Do not call v4l2_device_put if there is no release callback set.
-	 * Drivers that have no v4l2_device release callback might free the
-	 * v4l2_dev instance in the video_device release callback below, so we
-	 * must perform this check here.
-	 *
-	 * TODO: In the long run all drivers that use v4l2_device should use the
-	 * v4l2_device release callback. This check will then be unnecessary.
-	 */
-	if (v4l2_dev && v4l2_dev->release == NULL)
-		v4l2_dev = NULL;
-
-	/* Release video_device and perform other
-	   cleanups as needed. */
-	vdev->release(vdev);
-
-	/* Decrease v4l2_device refcount */
-	if (v4l2_dev)
-		v4l2_device_put(v4l2_dev);
-}
-
-static struct class video_class = {
-	.name = VIDEO_NAME,
-	.dev_attrs = video_device_attrs,
-};
-
-struct video_device *video_devdata(struct file *file)
-{
-	return video_device[iminor(file->f_path.dentry->d_inode)];
-}
-EXPORT_SYMBOL(video_devdata);
-
-
-/* Priority handling */
-
-static inline bool prio_is_valid(enum v4l2_priority prio)
-{
-	return prio == V4L2_PRIORITY_BACKGROUND ||
-	       prio == V4L2_PRIORITY_INTERACTIVE ||
-	       prio == V4L2_PRIORITY_RECORD;
-}
-
-void v4l2_prio_init(struct v4l2_prio_state *global)
-{
-	memset(global, 0, sizeof(*global));
-}
-EXPORT_SYMBOL(v4l2_prio_init);
-
-int v4l2_prio_change(struct v4l2_prio_state *global, enum v4l2_priority *local,
-		     enum v4l2_priority new)
-{
-	if (!prio_is_valid(new))
-		return -EINVAL;
-	if (*local == new)
-		return 0;
-
-	atomic_inc(&global->prios[new]);
-	if (prio_is_valid(*local))
-		atomic_dec(&global->prios[*local]);
-	*local = new;
-	return 0;
-}
-EXPORT_SYMBOL(v4l2_prio_change);
-
-void v4l2_prio_open(struct v4l2_prio_state *global, enum v4l2_priority *local)
-{
-	v4l2_prio_change(global, local, V4L2_PRIORITY_DEFAULT);
-}
-EXPORT_SYMBOL(v4l2_prio_open);
-
-void v4l2_prio_close(struct v4l2_prio_state *global, enum v4l2_priority local)
-{
-	if (prio_is_valid(local))
-		atomic_dec(&global->prios[local]);
-}
-EXPORT_SYMBOL(v4l2_prio_close);
-
-enum v4l2_priority v4l2_prio_max(struct v4l2_prio_state *global)
-{
-	if (atomic_read(&global->prios[V4L2_PRIORITY_RECORD]) > 0)
-		return V4L2_PRIORITY_RECORD;
-	if (atomic_read(&global->prios[V4L2_PRIORITY_INTERACTIVE]) > 0)
-		return V4L2_PRIORITY_INTERACTIVE;
-	if (atomic_read(&global->prios[V4L2_PRIORITY_BACKGROUND]) > 0)
-		return V4L2_PRIORITY_BACKGROUND;
-	return V4L2_PRIORITY_UNSET;
-}
-EXPORT_SYMBOL(v4l2_prio_max);
-
-int v4l2_prio_check(struct v4l2_prio_state *global, enum v4l2_priority local)
-{
-	return (local < v4l2_prio_max(global)) ? -EBUSY : 0;
-}
-EXPORT_SYMBOL(v4l2_prio_check);
-
-
-static ssize_t v4l2_read(struct file *filp, char __user *buf,
-		size_t sz, loff_t *off)
-{
-	struct video_device *vdev = video_devdata(filp);
-	int ret = -ENODEV;
-
-	if (!vdev->fops->read)
-		return -EINVAL;
-	if (video_is_registered(vdev))
-		ret = vdev->fops->read(filp, buf, sz, off);
-	if (vdev->debug)
-		printk(KERN_DEBUG "%s: read: %zd (%d)\n",
-			video_device_node_name(vdev), sz, ret);
-	return ret;
-}
-
-static ssize_t v4l2_write(struct file *filp, const char __user *buf,
-		size_t sz, loff_t *off)
-{
-	struct video_device *vdev = video_devdata(filp);
-	int ret = -ENODEV;
-
-	if (!vdev->fops->write)
-		return -EINVAL;
-	if (video_is_registered(vdev))
-		ret = vdev->fops->write(filp, buf, sz, off);
-	if (vdev->debug)
-		printk(KERN_DEBUG "%s: write: %zd (%d)\n",
-			video_device_node_name(vdev), sz, ret);
-	return ret;
-}
-
-static unsigned int v4l2_poll(struct file *filp, struct poll_table_struct *poll)
-{
-	struct video_device *vdev = video_devdata(filp);
-	unsigned int res = POLLERR | POLLHUP;
-
-	if (!vdev->fops->poll)
-		return DEFAULT_POLLMASK;
-	if (video_is_registered(vdev))
-		res = vdev->fops->poll(filp, poll);
-	if (vdev->debug)
-		printk(KERN_DEBUG "%s: poll: %08x\n",
-			video_device_node_name(vdev), res);
-	return res;
-}
-
-static long v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	struct video_device *vdev = video_devdata(filp);
-	int ret = -ENODEV;
-
-	if (vdev->fops->unlocked_ioctl) {
-		struct mutex *lock = v4l2_ioctl_get_lock(vdev, cmd);
-
-		if (lock && mutex_lock_interruptible(lock))
-			return -ERESTARTSYS;
-		if (video_is_registered(vdev))
-			ret = vdev->fops->unlocked_ioctl(filp, cmd, arg);
-		if (lock)
-			mutex_unlock(lock);
-	} else if (vdev->fops->ioctl) {
-		/* This code path is a replacement for the BKL. It is a major
-		 * hack but it will have to do for those drivers that are not
-		 * yet converted to use unlocked_ioctl.
-		 *
-		 * There are two options: if the driver implements struct
-		 * v4l2_device, then the lock defined there is used to
-		 * serialize the ioctls. Otherwise the v4l2 core lock defined
-		 * below is used. This lock is really bad since it serializes
-		 * completely independent devices.
-		 *
-		 * Both variants suffer from the same problem: if the driver
-		 * sleeps, then it blocks all ioctls since the lock is still
-		 * held. This is very common for VIDIOC_DQBUF since that
-		 * normally waits for a frame to arrive. As a result any other
-		 * ioctl calls will proceed very, very slowly since each call
-		 * will have to wait for the VIDIOC_QBUF to finish. Things that
-		 * should take 0.01s may now take 10-20 seconds.
-		 *
-		 * The workaround is to *not* take the lock for VIDIOC_DQBUF.
-		 * This actually works OK for videobuf-based drivers, since
-		 * videobuf will take its own internal lock.
-		 */
-		static DEFINE_MUTEX(v4l2_ioctl_mutex);
-		struct mutex *m = vdev->v4l2_dev ?
-			&vdev->v4l2_dev->ioctl_lock : &v4l2_ioctl_mutex;
-
-		if (cmd != VIDIOC_DQBUF && mutex_lock_interruptible(m))
-			return -ERESTARTSYS;
-		if (video_is_registered(vdev))
-			ret = vdev->fops->ioctl(filp, cmd, arg);
-		if (cmd != VIDIOC_DQBUF)
-			mutex_unlock(m);
-	} else
-		ret = -ENOTTY;
-
-	return ret;
-}
-
-#ifdef CONFIG_MMU
-#define v4l2_get_unmapped_area NULL
-#else
-static unsigned long v4l2_get_unmapped_area(struct file *filp,
-		unsigned long addr, unsigned long len, unsigned long pgoff,
-		unsigned long flags)
-{
-	struct video_device *vdev = video_devdata(filp);
-	int ret;
-
-	if (!vdev->fops->get_unmapped_area)
-		return -ENOSYS;
-	if (!video_is_registered(vdev))
-		return -ENODEV;
-	ret = vdev->fops->get_unmapped_area(filp, addr, len, pgoff, flags);
-	if (vdev->debug)
-		printk(KERN_DEBUG "%s: get_unmapped_area (%d)\n",
-			video_device_node_name(vdev), ret);
-	return ret;
-}
-#endif
-
-static int v4l2_mmap(struct file *filp, struct vm_area_struct *vm)
-{
-	struct video_device *vdev = video_devdata(filp);
-	int ret = -ENODEV;
-
-	if (!vdev->fops->mmap)
-		return -ENODEV;
-	if (video_is_registered(vdev))
-		ret = vdev->fops->mmap(filp, vm);
-	if (vdev->debug)
-		printk(KERN_DEBUG "%s: mmap (%d)\n",
-			video_device_node_name(vdev), ret);
-	return ret;
-}
-
-/* Override for the open function */
-static int v4l2_open(struct inode *inode, struct file *filp)
-{
-	struct video_device *vdev;
-	int ret = 0;
-
-	/* Check if the video device is available */
-	mutex_lock(&videodev_lock);
-	vdev = video_devdata(filp);
-	/* return ENODEV if the video device has already been removed. */
-	if (vdev == NULL || !video_is_registered(vdev)) {
-		mutex_unlock(&videodev_lock);
-		return -ENODEV;
-	}
-	/* and increase the device refcount */
-	video_get(vdev);
-	mutex_unlock(&videodev_lock);
-	if (vdev->fops->open) {
-		if (video_is_registered(vdev))
-			ret = vdev->fops->open(filp);
-		else
-			ret = -ENODEV;
-	}
-
-	if (vdev->debug)
-		printk(KERN_DEBUG "%s: open (%d)\n",
-			video_device_node_name(vdev), ret);
-	/* decrease the refcount in case of an error */
-	if (ret)
-		video_put(vdev);
-	return ret;
-}
-
-/* Override for the release function */
-static int v4l2_release(struct inode *inode, struct file *filp)
-{
-	struct video_device *vdev = video_devdata(filp);
-	int ret = 0;
-
-	if (vdev->fops->release)
-		ret = vdev->fops->release(filp);
-	if (vdev->debug)
-		printk(KERN_DEBUG "%s: release\n",
-			video_device_node_name(vdev));
-
-	/* decrease the refcount unconditionally since the release()
-	   return value is ignored. */
-	video_put(vdev);
-	return ret;
-}
-
-static const struct file_operations v4l2_fops = {
-	.owner = THIS_MODULE,
-	.read = v4l2_read,
-	.write = v4l2_write,
-	.open = v4l2_open,
-	.get_unmapped_area = v4l2_get_unmapped_area,
-	.mmap = v4l2_mmap,
-	.unlocked_ioctl = v4l2_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = v4l2_compat_ioctl32,
-#endif
-	.release = v4l2_release,
-	.poll = v4l2_poll,
-	.llseek = no_llseek,
-};
-
-/**
- * get_index - assign stream index number based on parent device
- * @vdev: video_device to assign index number to, vdev->parent should be assigned
- *
- * Note that when this is called the new device has not yet been registered
- * in the video_device array, but it was able to obtain a minor number.
- *
- * This means that we can always obtain a free stream index number since
- * the worst case scenario is that there are VIDEO_NUM_DEVICES - 1 slots in
- * use of the video_device array.
- *
- * Returns a free index number.
- */
-static int get_index(struct video_device *vdev)
-{
-	/* This can be static since this function is called with the global
-	   videodev_lock held. */
-	static DECLARE_BITMAP(used, VIDEO_NUM_DEVICES);
-	int i;
-
-	/* Some drivers do not set the parent. In that case always return 0. */
-	if (vdev->parent == NULL)
-		return 0;
-
-	bitmap_zero(used, VIDEO_NUM_DEVICES);
-
-	for (i = 0; i < VIDEO_NUM_DEVICES; i++) {
-		if (video_device[i] != NULL &&
-		    video_device[i]->parent == vdev->parent) {
-			set_bit(video_device[i]->index, used);
-		}
-	}
-
-	return find_first_zero_bit(used, VIDEO_NUM_DEVICES);
-}
-
-#define SET_VALID_IOCTL(ops, cmd, op)			\
-	if (ops->op)					\
-		set_bit(_IOC_NR(cmd), valid_ioctls)
-
-/* This determines which ioctls are actually implemented in the driver.
-   It's a one-time thing which simplifies video_ioctl2 as it can just do
-   a bit test.
-
-   Note that drivers can override this by setting bits to 1 in
-   vdev->valid_ioctls. If an ioctl is marked as 1 when this function is
-   called, then that ioctl will actually be marked as unimplemented.
-
-   It does that by first setting up the local valid_ioctls bitmap, and
-   at the end do a:
-
-   vdev->valid_ioctls = valid_ioctls & ~(vdev->valid_ioctls)
- */
-static void determine_valid_ioctls(struct video_device *vdev)
-{
-	DECLARE_BITMAP(valid_ioctls, BASE_VIDIOC_PRIVATE);
-	const struct v4l2_ioctl_ops *ops = vdev->ioctl_ops;
-
-	bitmap_zero(valid_ioctls, BASE_VIDIOC_PRIVATE);
-
-	SET_VALID_IOCTL(ops, VIDIOC_QUERYCAP, vidioc_querycap);
-	if (ops->vidioc_g_priority ||
-			test_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags))
-		set_bit(_IOC_NR(VIDIOC_G_PRIORITY), valid_ioctls);
-	if (ops->vidioc_s_priority ||
-			test_bit(V4L2_FL_USE_FH_PRIO, &vdev->flags))
-		set_bit(_IOC_NR(VIDIOC_S_PRIORITY), valid_ioctls);
-	if (ops->vidioc_enum_fmt_vid_cap ||
-	    ops->vidioc_enum_fmt_vid_out ||
-	    ops->vidioc_enum_fmt_vid_cap_mplane ||
-	    ops->vidioc_enum_fmt_vid_out_mplane ||
-	    ops->vidioc_enum_fmt_vid_overlay ||
-	    ops->vidioc_enum_fmt_type_private)
-		set_bit(_IOC_NR(VIDIOC_ENUM_FMT), valid_ioctls);
-	if (ops->vidioc_g_fmt_vid_cap ||
-	    ops->vidioc_g_fmt_vid_out ||
-	    ops->vidioc_g_fmt_vid_cap_mplane ||
-	    ops->vidioc_g_fmt_vid_out_mplane ||
-	    ops->vidioc_g_fmt_vid_overlay ||
-	    ops->vidioc_g_fmt_vbi_cap ||
-	    ops->vidioc_g_fmt_vid_out_overlay ||
-	    ops->vidioc_g_fmt_vbi_out ||
-	    ops->vidioc_g_fmt_sliced_vbi_cap ||
-	    ops->vidioc_g_fmt_sliced_vbi_out ||
-	    ops->vidioc_g_fmt_type_private)
-		set_bit(_IOC_NR(VIDIOC_G_FMT), valid_ioctls);
-	if (ops->vidioc_s_fmt_vid_cap ||
-	    ops->vidioc_s_fmt_vid_out ||
-	    ops->vidioc_s_fmt_vid_cap_mplane ||
-	    ops->vidioc_s_fmt_vid_out_mplane ||
-	    ops->vidioc_s_fmt_vid_overlay ||
-	    ops->vidioc_s_fmt_vbi_cap ||
-	    ops->vidioc_s_fmt_vid_out_overlay ||
-	    ops->vidioc_s_fmt_vbi_out ||
-	    ops->vidioc_s_fmt_sliced_vbi_cap ||
-	    ops->vidioc_s_fmt_sliced_vbi_out ||
-	    ops->vidioc_s_fmt_type_private)
-		set_bit(_IOC_NR(VIDIOC_S_FMT), valid_ioctls);
-	if (ops->vidioc_try_fmt_vid_cap ||
-	    ops->vidioc_try_fmt_vid_out ||
-	    ops->vidioc_try_fmt_vid_cap_mplane ||
-	    ops->vidioc_try_fmt_vid_out_mplane ||
-	    ops->vidioc_try_fmt_vid_overlay ||
-	    ops->vidioc_try_fmt_vbi_cap ||
-	    ops->vidioc_try_fmt_vid_out_overlay ||
-	    ops->vidioc_try_fmt_vbi_out ||
-	    ops->vidioc_try_fmt_sliced_vbi_cap ||
-	    ops->vidioc_try_fmt_sliced_vbi_out ||
-	    ops->vidioc_try_fmt_type_private)
-		set_bit(_IOC_NR(VIDIOC_TRY_FMT), valid_ioctls);
-	SET_VALID_IOCTL(ops, VIDIOC_REQBUFS, vidioc_reqbufs);
-	SET_VALID_IOCTL(ops, VIDIOC_QUERYBUF, vidioc_querybuf);
-	SET_VALID_IOCTL(ops, VIDIOC_QBUF, vidioc_qbuf);
-	SET_VALID_IOCTL(ops, VIDIOC_DQBUF, vidioc_dqbuf);
-	SET_VALID_IOCTL(ops, VIDIOC_OVERLAY, vidioc_overlay);
-	SET_VALID_IOCTL(ops, VIDIOC_G_FBUF, vidioc_g_fbuf);
-	SET_VALID_IOCTL(ops, VIDIOC_S_FBUF, vidioc_s_fbuf);
-	SET_VALID_IOCTL(ops, VIDIOC_STREAMON, vidioc_streamon);
-	SET_VALID_IOCTL(ops, VIDIOC_STREAMOFF, vidioc_streamoff);
-	if (vdev->tvnorms)
-		set_bit(_IOC_NR(VIDIOC_ENUMSTD), valid_ioctls);
-	if (ops->vidioc_g_std || vdev->current_norm)
-		set_bit(_IOC_NR(VIDIOC_G_STD), valid_ioctls);
-	SET_VALID_IOCTL(ops, VIDIOC_S_STD, vidioc_s_std);
-	SET_VALID_IOCTL(ops, VIDIOC_QUERYSTD, vidioc_querystd);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUMINPUT, vidioc_enum_input);
-	SET_VALID_IOCTL(ops, VIDIOC_G_INPUT, vidioc_g_input);
-	SET_VALID_IOCTL(ops, VIDIOC_S_INPUT, vidioc_s_input);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUMOUTPUT, vidioc_enum_output);
-	SET_VALID_IOCTL(ops, VIDIOC_G_OUTPUT, vidioc_g_output);
-	SET_VALID_IOCTL(ops, VIDIOC_S_OUTPUT, vidioc_s_output);
-	/* Note: the control handler can also be passed through the filehandle,
-	   and that can't be tested here. If the bit for these control ioctls
-	   is set, then the ioctl is valid. But if it is 0, then it can still
-	   be valid if the filehandle passed the control handler. */
-	if (vdev->ctrl_handler || ops->vidioc_queryctrl)
-		set_bit(_IOC_NR(VIDIOC_QUERYCTRL), valid_ioctls);
-	if (vdev->ctrl_handler || ops->vidioc_g_ctrl || ops->vidioc_g_ext_ctrls)
-		set_bit(_IOC_NR(VIDIOC_G_CTRL), valid_ioctls);
-	if (vdev->ctrl_handler || ops->vidioc_s_ctrl || ops->vidioc_s_ext_ctrls)
-		set_bit(_IOC_NR(VIDIOC_S_CTRL), valid_ioctls);
-	if (vdev->ctrl_handler || ops->vidioc_g_ext_ctrls)
-		set_bit(_IOC_NR(VIDIOC_G_EXT_CTRLS), valid_ioctls);
-	if (vdev->ctrl_handler || ops->vidioc_s_ext_ctrls)
-		set_bit(_IOC_NR(VIDIOC_S_EXT_CTRLS), valid_ioctls);
-	if (vdev->ctrl_handler || ops->vidioc_try_ext_ctrls)
-		set_bit(_IOC_NR(VIDIOC_TRY_EXT_CTRLS), valid_ioctls);
-	if (vdev->ctrl_handler || ops->vidioc_querymenu)
-		set_bit(_IOC_NR(VIDIOC_QUERYMENU), valid_ioctls);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUMAUDIO, vidioc_enumaudio);
-	SET_VALID_IOCTL(ops, VIDIOC_G_AUDIO, vidioc_g_audio);
-	SET_VALID_IOCTL(ops, VIDIOC_S_AUDIO, vidioc_s_audio);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUMAUDOUT, vidioc_enumaudout);
-	SET_VALID_IOCTL(ops, VIDIOC_G_AUDOUT, vidioc_g_audout);
-	SET_VALID_IOCTL(ops, VIDIOC_S_AUDOUT, vidioc_s_audout);
-	SET_VALID_IOCTL(ops, VIDIOC_G_MODULATOR, vidioc_g_modulator);
-	SET_VALID_IOCTL(ops, VIDIOC_S_MODULATOR, vidioc_s_modulator);
-	if (ops->vidioc_g_crop || ops->vidioc_g_selection)
-		set_bit(_IOC_NR(VIDIOC_G_CROP), valid_ioctls);
-	if (ops->vidioc_s_crop || ops->vidioc_s_selection)
-		set_bit(_IOC_NR(VIDIOC_S_CROP), valid_ioctls);
-	SET_VALID_IOCTL(ops, VIDIOC_G_SELECTION, vidioc_g_selection);
-	SET_VALID_IOCTL(ops, VIDIOC_S_SELECTION, vidioc_s_selection);
-	if (ops->vidioc_cropcap || ops->vidioc_g_selection)
-		set_bit(_IOC_NR(VIDIOC_CROPCAP), valid_ioctls);
-	SET_VALID_IOCTL(ops, VIDIOC_G_JPEGCOMP, vidioc_g_jpegcomp);
-	SET_VALID_IOCTL(ops, VIDIOC_S_JPEGCOMP, vidioc_s_jpegcomp);
-	SET_VALID_IOCTL(ops, VIDIOC_G_ENC_INDEX, vidioc_g_enc_index);
-	SET_VALID_IOCTL(ops, VIDIOC_ENCODER_CMD, vidioc_encoder_cmd);
-	SET_VALID_IOCTL(ops, VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd);
-	SET_VALID_IOCTL(ops, VIDIOC_DECODER_CMD, vidioc_decoder_cmd);
-	SET_VALID_IOCTL(ops, VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd);
-	if (ops->vidioc_g_parm || (vdev->vfl_type == VFL_TYPE_GRABBER &&
-					(ops->vidioc_g_std || vdev->tvnorms)))
-		set_bit(_IOC_NR(VIDIOC_G_PARM), valid_ioctls);
-	SET_VALID_IOCTL(ops, VIDIOC_S_PARM, vidioc_s_parm);
-	SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner);
-	SET_VALID_IOCTL(ops, VIDIOC_S_TUNER, vidioc_s_tuner);
-	SET_VALID_IOCTL(ops, VIDIOC_G_FREQUENCY, vidioc_g_frequency);
-	SET_VALID_IOCTL(ops, VIDIOC_S_FREQUENCY, vidioc_s_frequency);
-	SET_VALID_IOCTL(ops, VIDIOC_G_SLICED_VBI_CAP, vidioc_g_sliced_vbi_cap);
-	SET_VALID_IOCTL(ops, VIDIOC_LOG_STATUS, vidioc_log_status);
-#ifdef CONFIG_VIDEO_ADV_DEBUG
-	SET_VALID_IOCTL(ops, VIDIOC_DBG_G_REGISTER, vidioc_g_register);
-	SET_VALID_IOCTL(ops, VIDIOC_DBG_S_REGISTER, vidioc_s_register);
-#endif
-	SET_VALID_IOCTL(ops, VIDIOC_DBG_G_CHIP_IDENT, vidioc_g_chip_ident);
-	SET_VALID_IOCTL(ops, VIDIOC_S_HW_FREQ_SEEK, vidioc_s_hw_freq_seek);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMESIZES, vidioc_enum_framesizes);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUM_FRAMEINTERVALS, vidioc_enum_frameintervals);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_PRESETS, vidioc_enum_dv_presets);
-	SET_VALID_IOCTL(ops, VIDIOC_S_DV_PRESET, vidioc_s_dv_preset);
-	SET_VALID_IOCTL(ops, VIDIOC_G_DV_PRESET, vidioc_g_dv_preset);
-	SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_PRESET, vidioc_query_dv_preset);
-	SET_VALID_IOCTL(ops, VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings);
-	SET_VALID_IOCTL(ops, VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings);
-	SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings);
-	SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings);
-	SET_VALID_IOCTL(ops, VIDIOC_DV_TIMINGS_CAP, vidioc_dv_timings_cap);
-	/* yes, really vidioc_subscribe_event */
-	SET_VALID_IOCTL(ops, VIDIOC_DQEVENT, vidioc_subscribe_event);
-	SET_VALID_IOCTL(ops, VIDIOC_SUBSCRIBE_EVENT, vidioc_subscribe_event);
-	SET_VALID_IOCTL(ops, VIDIOC_UNSUBSCRIBE_EVENT, vidioc_unsubscribe_event);
-	SET_VALID_IOCTL(ops, VIDIOC_CREATE_BUFS, vidioc_create_bufs);
-	SET_VALID_IOCTL(ops, VIDIOC_PREPARE_BUF, vidioc_prepare_buf);
-	if (ops->vidioc_enum_freq_bands || ops->vidioc_g_tuner || ops->vidioc_g_modulator)
-		set_bit(_IOC_NR(VIDIOC_ENUM_FREQ_BANDS), valid_ioctls);
-	bitmap_andnot(vdev->valid_ioctls, valid_ioctls, vdev->valid_ioctls,
-			BASE_VIDIOC_PRIVATE);
-}
-
-/**
- *	__video_register_device - register video4linux devices
- *	@vdev: video device structure we want to register
- *	@type: type of device to register
- *	@nr:   which device node number (0 == /dev/video0, 1 == /dev/video1, ...
- *             -1 == first free)
- *	@warn_if_nr_in_use: warn if the desired device node number
- *	       was already in use and another number was chosen instead.
- *	@owner: module that owns the video device node
- *
- *	The registration code assigns minor numbers and device node numbers
- *	based on the requested type and registers the new device node with
- *	the kernel.
- *
- *	This function assumes that struct video_device was zeroed when it
- *	was allocated and does not contain any stale date.
- *
- *	An error is returned if no free minor or device node number could be
- *	found, or if the registration of the device node failed.
- *
- *	Zero is returned on success.
- *
- *	Valid types are
- *
- *	%VFL_TYPE_GRABBER - A frame grabber
- *
- *	%VFL_TYPE_VBI - Vertical blank data (undecoded)
- *
- *	%VFL_TYPE_RADIO - A radio card
- *
- *	%VFL_TYPE_SUBDEV - A subdevice
- */
-int __video_register_device(struct video_device *vdev, int type, int nr,
-		int warn_if_nr_in_use, struct module *owner)
-{
-	int i = 0;
-	int ret;
-	int minor_offset = 0;
-	int minor_cnt = VIDEO_NUM_DEVICES;
-	const char *name_base;
-
-	/* A minor value of -1 marks this video device as never
-	   having been registered */
-	vdev->minor = -1;
-
-	/* the release callback MUST be present */
-	if (WARN_ON(!vdev->release))
-		return -EINVAL;
-
-	/* v4l2_fh support */
-	spin_lock_init(&vdev->fh_lock);
-	INIT_LIST_HEAD(&vdev->fh_list);
-
-	/* Part 1: check device type */
-	switch (type) {
-	case VFL_TYPE_GRABBER:
-		name_base = "video";
-		break;
-	case VFL_TYPE_VBI:
-		name_base = "vbi";
-		break;
-	case VFL_TYPE_RADIO:
-		name_base = "radio";
-		break;
-	case VFL_TYPE_SUBDEV:
-		name_base = "v4l-subdev";
-		break;
-	default:
-		printk(KERN_ERR "%s called with unknown type: %d\n",
-		       __func__, type);
-		return -EINVAL;
-	}
-
-	vdev->vfl_type = type;
-	vdev->cdev = NULL;
-	if (vdev->v4l2_dev) {
-		if (vdev->v4l2_dev->dev)
-			vdev->parent = vdev->v4l2_dev->dev;
-		if (vdev->ctrl_handler == NULL)
-			vdev->ctrl_handler = vdev->v4l2_dev->ctrl_handler;
-		/* If the prio state pointer is NULL, then use the v4l2_device
-		   prio state. */
-		if (vdev->prio == NULL)
-			vdev->prio = &vdev->v4l2_dev->prio;
-	}
-
-	/* Part 2: find a free minor, device node number and device index. */
-#ifdef CONFIG_VIDEO_FIXED_MINOR_RANGES
-	/* Keep the ranges for the first four types for historical
-	 * reasons.
-	 * Newer devices (not yet in place) should use the range
-	 * of 128-191 and just pick the first free minor there
-	 * (new style). */
-	switch (type) {
-	case VFL_TYPE_GRABBER:
-		minor_offset = 0;
-		minor_cnt = 64;
-		break;
-	case VFL_TYPE_RADIO:
-		minor_offset = 64;
-		minor_cnt = 64;
-		break;
-	case VFL_TYPE_VBI:
-		minor_offset = 224;
-		minor_cnt = 32;
-		break;
-	default:
-		minor_offset = 128;
-		minor_cnt = 64;
-		break;
-	}
-#endif
-
-	/* Pick a device node number */
-	mutex_lock(&videodev_lock);
-	nr = devnode_find(vdev, nr == -1 ? 0 : nr, minor_cnt);
-	if (nr == minor_cnt)
-		nr = devnode_find(vdev, 0, minor_cnt);
-	if (nr == minor_cnt) {
-		printk(KERN_ERR "could not get a free device node number\n");
-		mutex_unlock(&videodev_lock);
-		return -ENFILE;
-	}
-#ifdef CONFIG_VIDEO_FIXED_MINOR_RANGES
-	/* 1-on-1 mapping of device node number to minor number */
-	i = nr;
-#else
-	/* The device node number and minor numbers are independent, so
-	   we just find the first free minor number. */
-	for (i = 0; i < VIDEO_NUM_DEVICES; i++)
-		if (video_device[i] == NULL)
-			break;
-	if (i == VIDEO_NUM_DEVICES) {
-		mutex_unlock(&videodev_lock);
-		printk(KERN_ERR "could not get a free minor\n");
-		return -ENFILE;
-	}
-#endif
-	vdev->minor = i + minor_offset;
-	vdev->num = nr;
-	devnode_set(vdev);
-
-	/* Should not happen since we thought this minor was free */
-	WARN_ON(video_device[vdev->minor] != NULL);
-	vdev->index = get_index(vdev);
-	mutex_unlock(&videodev_lock);
-
-	if (vdev->ioctl_ops)
-		determine_valid_ioctls(vdev);
-
-	/* Part 3: Initialize the character device */
-	vdev->cdev = cdev_alloc();
-	if (vdev->cdev == NULL) {
-		ret = -ENOMEM;
-		goto cleanup;
-	}
-	vdev->cdev->ops = &v4l2_fops;
-	vdev->cdev->owner = owner;
-	ret = cdev_add(vdev->cdev, MKDEV(VIDEO_MAJOR, vdev->minor), 1);
-	if (ret < 0) {
-		printk(KERN_ERR "%s: cdev_add failed\n", __func__);
-		kfree(vdev->cdev);
-		vdev->cdev = NULL;
-		goto cleanup;
-	}
-
-	/* Part 4: register the device with sysfs */
-	vdev->dev.class = &video_class;
-	vdev->dev.devt = MKDEV(VIDEO_MAJOR, vdev->minor);
-	if (vdev->parent)
-		vdev->dev.parent = vdev->parent;
-	dev_set_name(&vdev->dev, "%s%d", name_base, vdev->num);
-	ret = device_register(&vdev->dev);
-	if (ret < 0) {
-		printk(KERN_ERR "%s: device_register failed\n", __func__);
-		goto cleanup;
-	}
-	/* Register the release callback that will be called when the last
-	   reference to the device goes away. */
-	vdev->dev.release = v4l2_device_release;
-
-	if (nr != -1 && nr != vdev->num && warn_if_nr_in_use)
-		printk(KERN_WARNING "%s: requested %s%d, got %s\n", __func__,
-			name_base, nr, video_device_node_name(vdev));
-
-	/* Increase v4l2_device refcount */
-	if (vdev->v4l2_dev)
-		v4l2_device_get(vdev->v4l2_dev);
-
-#if defined(CONFIG_MEDIA_CONTROLLER)
-	/* Part 5: Register the entity. */
-	if (vdev->v4l2_dev && vdev->v4l2_dev->mdev &&
-	    vdev->vfl_type != VFL_TYPE_SUBDEV) {
-		vdev->entity.type = MEDIA_ENT_T_DEVNODE_V4L;
-		vdev->entity.name = vdev->name;
-		vdev->entity.info.v4l.major = VIDEO_MAJOR;
-		vdev->entity.info.v4l.minor = vdev->minor;
-		ret = media_device_register_entity(vdev->v4l2_dev->mdev,
-			&vdev->entity);
-		if (ret < 0)
-			printk(KERN_WARNING
-			       "%s: media_device_register_entity failed\n",
-			       __func__);
-	}
-#endif
-	/* Part 6: Activate this minor. The char device can now be used. */
-	set_bit(V4L2_FL_REGISTERED, &vdev->flags);
-	mutex_lock(&videodev_lock);
-	video_device[vdev->minor] = vdev;
-	mutex_unlock(&videodev_lock);
-
-	return 0;
-
-cleanup:
-	mutex_lock(&videodev_lock);
-	if (vdev->cdev)
-		cdev_del(vdev->cdev);
-	devnode_clear(vdev);
-	mutex_unlock(&videodev_lock);
-	/* Mark this video device as never having been registered. */
-	vdev->minor = -1;
-	return ret;
-}
-EXPORT_SYMBOL(__video_register_device);
-
-/**
- *	video_unregister_device - unregister a video4linux device
- *	@vdev: the device to unregister
- *
- *	This unregisters the passed device. Future open calls will
- *	be met with errors.
- */
-void video_unregister_device(struct video_device *vdev)
-{
-	/* Check if vdev was ever registered at all */
-	if (!vdev || !video_is_registered(vdev))
-		return;
-
-	mutex_lock(&videodev_lock);
-	/* This must be in a critical section to prevent a race with v4l2_open.
-	 * Once this bit has been cleared video_get may never be called again.
-	 */
-	clear_bit(V4L2_FL_REGISTERED, &vdev->flags);
-	mutex_unlock(&videodev_lock);
-	device_unregister(&vdev->dev);
-}
-EXPORT_SYMBOL(video_unregister_device);
-
-/*
- *	Initialise video for linux
- */
-static int __init videodev_init(void)
-{
-	dev_t dev = MKDEV(VIDEO_MAJOR, 0);
-	int ret;
-
-	printk(KERN_INFO "Linux video capture interface: v2.00\n");
-	ret = register_chrdev_region(dev, VIDEO_NUM_DEVICES, VIDEO_NAME);
-	if (ret < 0) {
-		printk(KERN_WARNING "videodev: unable to get major %d\n",
-				VIDEO_MAJOR);
-		return ret;
-	}
-
-	ret = class_register(&video_class);
-	if (ret < 0) {
-		unregister_chrdev_region(dev, VIDEO_NUM_DEVICES);
-		printk(KERN_WARNING "video_dev: class_register failed\n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static void __exit videodev_exit(void)
-{
-	dev_t dev = MKDEV(VIDEO_MAJOR, 0);
-
-	class_unregister(&video_class);
-	unregister_chrdev_region(dev, VIDEO_NUM_DEVICES);
-}
-
-subsys_initcall(videodev_init);
-module_exit(videodev_exit)
-
-MODULE_AUTHOR("Alan Cox, Mauro Carvalho Chehab <mchehab@infradead.org>");
-MODULE_DESCRIPTION("Device registrar for Video4Linux drivers v2");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_CHARDEV_MAJOR(VIDEO_MAJOR);
-
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */