1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>
4  *
5  * generic videomode description
6  */
7 
8 #ifndef __LINUX_VIDEOMODE_H
9 #define __LINUX_VIDEOMODE_H
10 
11 #include <linux/types.h>
12 #include <video/display_timing.h>
13 
14 /*
15  * Subsystem independent description of a videomode.
16  * Can be generated from struct display_timing.
17  */
18 struct videomode {
19 	unsigned long pixelclock;	/* pixelclock in Hz */
20 
21 	u32 hactive;
22 	u32 hfront_porch;
23 	u32 hback_porch;
24 	u32 hsync_len;
25 
26 	u32 vactive;
27 	u32 vfront_porch;
28 	u32 vback_porch;
29 	u32 vsync_len;
30 
31 	enum display_flags flags; /* display flags */
32 };
33 
34 /**
35  * videomode_from_timing - convert display timing to videomode
36  * @dt: display_timing structure
37  * @vm: return value
38  *
39  * DESCRIPTION:
40  * This function converts a struct display_timing to a struct videomode.
41  */
42 void videomode_from_timing(const struct display_timing *dt,
43 			  struct videomode *vm);
44 
45 /**
46  * videomode_from_timings - convert one display timings entry to videomode
47  * @disp: structure with all possible timing entries
48  * @vm: return value
49  * @index: index into the list of display timings in devicetree
50  *
51  * DESCRIPTION:
52  * This function converts one struct display_timing entry to a struct videomode.
53  */
54 int videomode_from_timings(const struct display_timings *disp,
55 			  struct videomode *vm, unsigned int index);
56 
57 #endif
58