diff options
Diffstat (limited to 'ANDROID_3.4.5/include/media/media-devnode.h')
| -rw-r--r-- | ANDROID_3.4.5/include/media/media-devnode.h | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/ANDROID_3.4.5/include/media/media-devnode.h b/ANDROID_3.4.5/include/media/media-devnode.h deleted file mode 100644 index f6caafc8..00000000 --- a/ANDROID_3.4.5/include/media/media-devnode.h +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Media device node - * - * Copyright (C) 2010 Nokia Corporation - * - * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> - * Sakari Ailus <sakari.ailus@iki.fi> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * 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 - * - * -- - * - * Common functions for media-related drivers to register and unregister media - * device nodes. - */ - -#ifndef _MEDIA_DEVNODE_H -#define _MEDIA_DEVNODE_H - -#include <linux/poll.h> -#include <linux/fs.h> -#include <linux/device.h> -#include <linux/cdev.h> - -/* - * Flag to mark the media_devnode struct as registered. Drivers must not touch - * this flag directly, it will be set and cleared by media_devnode_register and - * media_devnode_unregister. - */ -#define MEDIA_FLAG_REGISTERED 0 - -struct media_file_operations { - struct module *owner; - ssize_t (*read) (struct file *, char __user *, size_t, loff_t *); - ssize_t (*write) (struct file *, const char __user *, size_t, loff_t *); - unsigned int (*poll) (struct file *, struct poll_table_struct *); - long (*ioctl) (struct file *, unsigned int, unsigned long); - int (*open) (struct file *); - int (*release) (struct file *); -}; - -/** - * struct media_devnode - Media device node - * @parent: parent device - * @minor: device node minor number - * @flags: flags, combination of the MEDIA_FLAG_* constants - * - * This structure represents a media-related device node. - * - * The @parent is a physical device. It must be set by core or device drivers - * before registering the node. - */ -struct media_devnode { - /* device ops */ - const struct media_file_operations *fops; - - /* sysfs */ - struct device dev; /* media device */ - struct cdev cdev; /* character device */ - struct device *parent; /* device parent */ - - /* device info */ - int minor; - unsigned long flags; /* Use bitops to access flags */ - - /* callbacks */ - void (*release)(struct media_devnode *mdev); -}; - -/* dev to media_devnode */ -#define to_media_devnode(cd) container_of(cd, struct media_devnode, dev) - -int __must_check media_devnode_register(struct media_devnode *mdev); -void media_devnode_unregister(struct media_devnode *mdev); - -static inline struct media_devnode *media_devnode_data(struct file *filp) -{ - return filp->private_data; -} - -static inline int media_devnode_is_registered(struct media_devnode *mdev) -{ - return test_bit(MEDIA_FLAG_REGISTERED, &mdev->flags); -} - -#endif /* _MEDIA_DEVNODE_H */ |