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2ee12163 JS |
1 | /* |
2 | * Copyright (C) 2006 James Simmons <jsimmons@infradead.org> | |
3 | * | |
4 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or (at | |
9 | * your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. | |
19 | * | |
20 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
21 | */ | |
22 | ||
23 | #ifndef _LINUX_DISPLAY_H | |
24 | #define _LINUX_DISPLAY_H | |
25 | ||
26 | #include <linux/device.h> | |
27 | ||
28 | struct display_device; | |
29 | ||
30 | /* This structure defines all the properties of a Display. */ | |
31 | struct display_driver { | |
32 | int (*set_contrast)(struct display_device *, unsigned int); | |
33 | int (*get_contrast)(struct display_device *); | |
34 | void (*suspend)(struct display_device *, pm_message_t state); | |
35 | void (*resume)(struct display_device *); | |
36 | int (*probe)(struct display_device *, void *); | |
37 | int (*remove)(struct display_device *); | |
38 | int max_contrast; | |
39 | }; | |
40 | ||
41 | struct display_device { | |
42 | struct module *owner; /* Owner module */ | |
43 | struct display_driver *driver; | |
44 | struct device *parent; /* This is the parent */ | |
45 | struct device *dev; /* This is this display device */ | |
46 | struct mutex lock; | |
47 | void *priv_data; | |
48 | char type[16]; | |
49 | char *name; | |
50 | int idx; | |
51 | }; | |
52 | ||
53 | extern struct display_device *display_device_register(struct display_driver *driver, | |
54 | struct device *dev, void *devdata); | |
55 | extern void display_device_unregister(struct display_device *dev); | |
56 | ||
57 | extern int probe_edid(struct display_device *dev, void *devdata); | |
58 | ||
59 | #define to_display_device(obj) container_of(obj, struct display_device, class_dev) | |
60 | ||
61 | #endif |