video_output.h
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/*
*
* Copyright (C) 2006 Luming Yu <luming.yu@intel.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 (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.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#ifndef _LINUX_VIDEO_OUTPUT_H
#define _LINUX_VIDEO_OUTPUT_H
#include <linux/device.h>
#include <linux/err.h>
struct output_device;
struct output_properties {
int (*set_state)(struct output_device *);
int (*get_status)(struct output_device *);
};
struct output_device {
int request_state;
struct output_properties *props;
struct device dev;
};
#define to_output_device(obj) container_of(obj, struct output_device, dev)
#if defined(CONFIG_VIDEO_OUTPUT_CONTROL) || defined(CONFIG_VIDEO_OUTPUT_CONTROL_MODULE)
struct output_device *video_output_register(const char *name,
struct device *dev,
void *devdata,
struct output_properties *op);
void video_output_unregister(struct output_device *dev);
#else
static struct output_device *video_output_register(const char *name,
struct device *dev,
void *devdata,
struct output_properties *op)
{
return ERR_PTR(-ENODEV);
}
static void video_output_unregister(struct output_device *dev)
{
return;
}
#endif
#endif