1 files changed, 0 insertions, 427 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
deleted file mode 100644
index 155fdec9ac7..00000000000
--- a/drivers/media/video/v4l2-dev.c
+++ /dev/null
@@ -1,427 +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@redhat.com> (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 <linux/smp_lock.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#include <media/v4l2-common.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 *vfd = container_of(cd, struct video_device, dev);
-	return sprintf(buf, "%i\n", vfd->index);
-}
-
-static ssize_t show_name(struct device *cd,
-			 struct device_attribute *attr, char *buf)
-{
-	struct video_device *vfd = container_of(cd, struct video_device, dev);
-	return sprintf(buf, "%.*s\n", (int)sizeof(vfd->name), vfd->name);
-}
-
-static struct device_attribute video_device_attrs[] = {
-	__ATTR(name, S_IRUGO, show_name, NULL),
-	__ATTR(index, S_IRUGO, show_index, NULL),
-	__ATTR_NULL
-};
-
-struct video_device *video_device_alloc(void)
-{
-	struct video_device *vfd;
-
-	vfd = kzalloc(sizeof(*vfd), GFP_KERNEL);
-	return vfd;
-}
-EXPORT_SYMBOL(video_device_alloc);
-
-void video_device_release(struct video_device *vfd)
-{
-	kfree(vfd);
-}
-EXPORT_SYMBOL(video_device_release);
-
-static void video_release(struct device *cd)
-{
-	struct video_device *vfd = container_of(cd, struct video_device, dev);
-
-#if 1
-	/* needed until all drivers are fixed */
-	if (!vfd->release)
-		return;
-#endif
-	vfd->release(vfd);
-}
-
-static struct class video_class = {
-	.name = VIDEO_NAME,
-	.dev_attrs = video_device_attrs,
-	.dev_release = video_release,
-};
-
-/*
- *	Active devices
- */
-
-static struct video_device *video_device[VIDEO_NUM_DEVICES];
-static DEFINE_MUTEX(videodev_lock);
-
-struct video_device *video_devdata(struct file *file)
-{
-	return video_device[iminor(file->f_path.dentry->d_inode)];
-}
-EXPORT_SYMBOL(video_devdata);
-
-/*
- *	Open a video device - FIXME: Obsoleted
- */
-static int video_open(struct inode *inode, struct file *file)
-{
-	unsigned int minor = iminor(inode);
-	int err = 0;
-	struct video_device *vfl;
-	const struct file_operations *old_fops;
-
-	if (minor >= VIDEO_NUM_DEVICES)
-		return -ENODEV;
-	lock_kernel();
-	mutex_lock(&videodev_lock);
-	vfl = video_device[minor];
-	if (vfl == NULL) {
-		mutex_unlock(&videodev_lock);
-		request_module("char-major-%d-%d", VIDEO_MAJOR, minor);
-		mutex_lock(&videodev_lock);
-		vfl = video_device[minor];
-		if (vfl == NULL) {
-			mutex_unlock(&videodev_lock);
-			unlock_kernel();
-			return -ENODEV;
-		}
-	}
-	old_fops = file->f_op;
-	file->f_op = fops_get(vfl->fops);
-	if (file->f_op->open)
-		err = file->f_op->open(inode, file);
-	if (err) {
-		fops_put(file->f_op);
-		file->f_op = fops_get(old_fops);
-	}
-	fops_put(old_fops);
-	mutex_unlock(&videodev_lock);
-	unlock_kernel();
-	return err;
-}
-
-/*
- * open/release helper functions -- handle exclusive opens
- * Should be removed soon
- */
-int video_exclusive_open(struct inode *inode, struct file *file)
-{
-	struct video_device *vfl = video_devdata(file);
-	int retval = 0;
-
-	mutex_lock(&vfl->lock);
-	if (vfl->users)
-		retval = -EBUSY;
-	else
-		vfl->users++;
-	mutex_unlock(&vfl->lock);
-	return retval;
-}
-EXPORT_SYMBOL(video_exclusive_open);
-
-int video_exclusive_release(struct inode *inode, struct file *file)
-{
-	struct video_device *vfl = video_devdata(file);
-
-	vfl->users--;
-	return 0;
-}
-EXPORT_SYMBOL(video_exclusive_release);
-
-/**
- * get_index - assign stream number based on parent device
- * @vdev: video_device to assign index number to, vdev->dev should be assigned
- * @num: -1 if auto assign, requested number otherwise
- *
- *
- * returns -ENFILE if num is already in use, a free index number if
- * successful.
- */
-static int get_index(struct video_device *vdev, int num)
-{
-	u32 used = 0;
-	const int max_index = sizeof(used) * 8 - 1;
-	int i;
-
-	/* Currently a single v4l driver instance cannot create more than
-	   32 devices.
-	   Increase to u64 or an array of u32 if more are needed. */
-	if (num > max_index) {
-		printk(KERN_ERR "videodev: %s num is too large\n", __func__);
-		return -EINVAL;
-	}
-
-	for (i = 0; i < VIDEO_NUM_DEVICES; i++) {
-		if (video_device[i] != NULL &&
-		    video_device[i] != vdev &&
-		    video_device[i]->parent == vdev->parent) {
-			used |= 1 << video_device[i]->index;
-		}
-	}
-
-	if (num >= 0) {
-		if (used & (1 << num))
-			return -ENFILE;
-		return num;
-	}
-
-	i = ffz(used);
-	return i > max_index ? -ENFILE : i;
-}
-
-static const struct file_operations video_fops;
-
-int video_register_device(struct video_device *vfd, int type, int nr)
-{
-	return video_register_device_index(vfd, type, nr, -1);
-}
-EXPORT_SYMBOL(video_register_device);
-
-/**
- *	video_register_device_index - register video4linux devices
- *	@vfd:  video device structure we want to register
- *	@type: type of device to register
- *	@nr:   which device number (0 == /dev/video0, 1 == /dev/video1, ...
- *             -1 == first free)
- *	@index: stream number based on parent device;
- *		-1 if auto assign, requested number otherwise
- *
- *	The registration code assigns minor numbers based on the type
- *	requested. -ENFILE is returned in all the device slots for this
- *	category are full. If not then the minor field is set and the
- *	driver initialize function is called (if non %NULL).
- *
- *	Zero is returned on success.
- *
- *	Valid types are
- *
- *	%VFL_TYPE_GRABBER - A frame grabber
- *
- *	%VFL_TYPE_VTX - A teletext device
- *
- *	%VFL_TYPE_VBI - Vertical blank data (undecoded)
- *
- *	%VFL_TYPE_RADIO - A radio card
- */
-
-int video_register_device_index(struct video_device *vfd, int type, int nr,
-					int index)
-{
-	int i = 0;
-	int base;
-	int end;
-	int ret;
-	char *name_base;
-
-	if (vfd == NULL)
-		return -EINVAL;
-
-	switch (type) {
-	case VFL_TYPE_GRABBER:
-		base = MINOR_VFL_TYPE_GRABBER_MIN;
-		end = MINOR_VFL_TYPE_GRABBER_MAX+1;
-		name_base = "video";
-		break;
-	case VFL_TYPE_VTX:
-		base = MINOR_VFL_TYPE_VTX_MIN;
-		end = MINOR_VFL_TYPE_VTX_MAX+1;
-		name_base = "vtx";
-		break;
-	case VFL_TYPE_VBI:
-		base = MINOR_VFL_TYPE_VBI_MIN;
-		end = MINOR_VFL_TYPE_VBI_MAX+1;
-		name_base = "vbi";
-		break;
-	case VFL_TYPE_RADIO:
-		base = MINOR_VFL_TYPE_RADIO_MIN;
-		end = MINOR_VFL_TYPE_RADIO_MAX+1;
-		name_base = "radio";
-		break;
-	default:
-		printk(KERN_ERR "%s called with unknown type: %d\n",
-		       __func__, type);
-		return -EINVAL;
-	}
-
-	/* pick a minor number */
-	mutex_lock(&videodev_lock);
-	if (nr >= 0  &&  nr < end-base) {
-		/* use the one the driver asked for */
-		i = base + nr;
-		if (NULL != video_device[i]) {
-			mutex_unlock(&videodev_lock);
-			return -ENFILE;
-		}
-	} else {
-		/* use first free */
-		for (i = base; i < end; i++)
-			if (NULL == video_device[i])
-				break;
-		if (i == end) {
-			mutex_unlock(&videodev_lock);
-			return -ENFILE;
-		}
-	}
-	video_device[i] = vfd;
-	vfd->vfl_type = type;
-	vfd->minor = i;
-
-	ret = get_index(vfd, index);
-	vfd->index = ret;
-
-	mutex_unlock(&videodev_lock);
-
-	if (ret < 0) {
-		printk(KERN_ERR "%s: get_index failed\n", __func__);
-		goto fail_minor;
-	}
-
-	mutex_init(&vfd->lock);
-
-	/* sysfs class */
-	memset(&vfd->dev, 0x00, sizeof(vfd->dev));
-	vfd->dev.class = &video_class;
-	vfd->dev.devt = MKDEV(VIDEO_MAJOR, vfd->minor);
-	if (vfd->parent)
-		vfd->dev.parent = vfd->parent;
-	sprintf(vfd->dev.bus_id, "%s%d", name_base, i - base);
-	ret = device_register(&vfd->dev);
-	if (ret < 0) {
-		printk(KERN_ERR "%s: device_register failed\n", __func__);
-		goto fail_minor;
-	}
-
-#if 1
-	/* needed until all drivers are fixed */
-	if (!vfd->release)
-		printk(KERN_WARNING "videodev: \"%s\" has no release callback. "
-		       "Please fix your driver for proper sysfs support, see "
-		       "http://lwn.net/Articles/36850/\n", vfd->name);
-#endif
-	return 0;
-
-fail_minor:
-	mutex_lock(&videodev_lock);
-	video_device[vfd->minor] = NULL;
-	vfd->minor = -1;
-	mutex_unlock(&videodev_lock);
-	return ret;
-}
-EXPORT_SYMBOL(video_register_device_index);
-
-/**
- *	video_unregister_device - unregister a video4linux device
- *	@vfd: the device to unregister
- *
- *	This unregisters the passed device and deassigns the minor
- *	number. Future open calls will be met with errors.
- */
-
-void video_unregister_device(struct video_device *vfd)
-{
-	mutex_lock(&videodev_lock);
-	if (video_device[vfd->minor] != vfd)
-		panic("videodev: bad unregister");
-
-	video_device[vfd->minor] = NULL;
-	device_unregister(&vfd->dev);
-	mutex_unlock(&videodev_lock);
-}
-EXPORT_SYMBOL(video_unregister_device);
-
-/*
- * Video fs operations
- */
-static const struct file_operations video_fops = {
-	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
-	.open		= video_open,
-};
-
-/*
- *	Initialise video for linux
- */
-
-static int __init videodev_init(void)
-{
-	int ret;
-
-	printk(KERN_INFO "Linux video capture interface: v2.00\n");
-	if (register_chrdev(VIDEO_MAJOR, VIDEO_NAME, &video_fops)) {
-		printk(KERN_WARNING "video_dev: unable to get major %d\n", VIDEO_MAJOR);
-		return -EIO;
-	}
-
-	ret = class_register(&video_class);
-	if (ret < 0) {
-		unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME);
-		printk(KERN_WARNING "video_dev: class_register failed\n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static void __exit videodev_exit(void)
-{
-	class_unregister(&video_class);
-	unregister_chrdev(VIDEO_MAJOR, VIDEO_NAME);
-}
-
-module_init(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");
-
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */