1 /*
2 *
3 * Copyright (C) 2006 Luming Yu <luming.yu@intel.com>
4 *
5 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or (at
10 * your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 *
21 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
22 */
23 #ifndef _LINUX_VIDEO_OUTPUT_H
24 #define _LINUX_VIDEO_OUTPUT_H
25 #include <linux/device.h>
26 #include <linux/err.h>
27 struct output_device;
28 struct output_properties {
29 int (*set_state)(struct output_device *);
30 int (*get_status)(struct output_device *);
31 };
32 struct output_device {
33 int request_state;
34 struct output_properties *props;
35 struct device dev;
36 };
37 #define to_output_device(obj) container_of(obj, struct output_device, dev)
38 #if defined(CONFIG_VIDEO_OUTPUT_CONTROL) || defined(CONFIG_VIDEO_OUTPUT_CONTROL_MODULE)
39 struct output_device *video_output_register(const char *name,
40 struct device *dev,
41 void *devdata,
42 struct output_properties *op);
43 void video_output_unregister(struct output_device *dev);
44 #else
video_output_register(const char * name,struct device * dev,void * devdata,struct output_properties * op)45 static struct output_device *video_output_register(const char *name,
46 struct device *dev,
47 void *devdata,
48 struct output_properties *op)
49 {
50 return ERR_PTR(-ENODEV);
51 }
video_output_unregister(struct output_device * dev)52 static void video_output_unregister(struct output_device *dev)
53 {
54 return;
55 }
56 #endif
57 #endif
58