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1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2004
4  * Pierre Aubert, Staubli Faverges , <p.aubert@staubli.com>
5  */
6 
7 #include <edid.h>
8 
9 #ifndef CONFIG_SYS_DEFAULT_VIDEO_MODE
10 #define CONFIG_SYS_DEFAULT_VIDEO_MODE	0x301
11 #endif
12 
13 /* Some mode definitions */
14 #define FB_SYNC_HOR_HIGH_ACT	1	/* horizontal sync high active	*/
15 #define FB_SYNC_VERT_HIGH_ACT	2	/* vertical sync high active	*/
16 #define FB_SYNC_EXT		4	/* external sync		*/
17 #define FB_SYNC_COMP_HIGH_ACT	8	/* composite sync high active	*/
18 #define FB_SYNC_BROADCAST	16	/* broadcast video timings	*/
19 					/* vtotal = 144d/288n/576i => PAL  */
20 					/* vtotal = 121d/242n/484i => NTSC */
21 #define FB_SYNC_ON_GREEN	32	/* sync on green */
22 #define FB_VMODE_NONINTERLACED	0	/* non interlaced */
23 #define FB_VMODE_INTERLACED	1	/* interlaced	*/
24 #define FB_VMODE_DOUBLE		2	/* double scan */
25 #define FB_VMODE_MASK		255
26 
27 #define FB_VMODE_YWRAP		256	/* ywrap instead of panning	*/
28 #define FB_VMODE_SMOOTH_XPAN	512	/* smooth xpan possible (internally used) */
29 #define FB_VMODE_CONUPDATE	512	/* don't update x/yoffset	*/
30 
31 
32 /******************************************************************
33  * Resolution Struct
34  ******************************************************************/
35 struct ctfb_res_modes {
36 	int xres;		/* visible resolution		*/
37 	int yres;
38 	int refresh;		/* vertical refresh rate in hz  */
39 	/* Timing: All values in pixclocks, except pixclock (of course) */
40 	int pixclock;		/* pixel clock in ps (pico seconds) */
41 	int pixclock_khz;	/* pixel clock in kHz           */
42 	int left_margin;	/* time from sync to picture	*/
43 	int right_margin;	/* time from picture to sync	*/
44 	int upper_margin;	/* time from sync to picture	*/
45 	int lower_margin;
46 	int hsync_len;		/* length of horizontal sync	*/
47 	int vsync_len;		/* length of vertical sync	*/
48 	int sync;		/* see FB_SYNC_*		*/
49 	int vmode;		/* see FB_VMODE_*		*/
50 };
51 
52 /******************************************************************
53  * Vesa Mode Struct
54  ******************************************************************/
55 struct ctfb_vesa_modes {
56 	int vesanr;		/* Vesa number as in LILO (VESA Nr + 0x200} */
57 	int resindex;		/* index to resolution struct */
58 	int bits_per_pixel;	/* bpp */
59 };
60 
61 #define RES_MODE_640x480	0
62 #define RES_MODE_800x600	1
63 #define RES_MODE_1024x768	2
64 #define RES_MODE_960_720	3
65 #define RES_MODE_1152x864	4
66 #define RES_MODE_1280x1024	5
67 #define RES_MODE_1280x720	6
68 #define RES_MODE_1360x768	7
69 #define RES_MODE_1920x1080	8
70 #define RES_MODE_1920x1200	9
71 #define RES_MODES_COUNT		10
72 
73 #define VESA_MODES_COUNT 19
74 
75 extern const struct ctfb_vesa_modes vesa_modes[];
76 extern const struct ctfb_res_modes res_mode_init[];
77 
78 int video_get_params (struct ctfb_res_modes *pPar, char *penv);
79 
80 int video_get_video_mode(unsigned int *xres, unsigned int *yres,
81 	unsigned int *depth, unsigned int *freq, const char **options);
82 
83 void video_get_ctfb_res_modes(int default_mode, unsigned int default_depth,
84 			      const struct ctfb_res_modes **mode_ret,
85 			      unsigned int *depth_ret,
86 			      const char **options);
87 
88 void video_get_option_string(const char *options, const char *name,
89 			     char *dest, int dest_len, const char *def);
90 
91 int video_get_option_int(const char *options, const char *name, int def);
92 
93 int video_edid_dtd_to_ctfb_res_modes(struct edid_detailed_timing *t,
94 				     struct ctfb_res_modes *mode);
95