1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
4  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
5 
6  */
7 
8 #ifndef __DVI_H__
9 #define __DVI_H__
10 
11 /*Definition TMDS Device ID register*/
12 #define     VT1632_DEVICE_ID_REG        0x02
13 #define     VT1632_DEVICE_ID            0x92
14 
15 #define     GET_DVI_SIZE_BY_SYSTEM_BIOS     0x01
16 #define     GET_DVI_SIZE_BY_VGA_BIOS        0x02
17 #define     GET_DVI_SZIE_BY_HW_STRAPPING    0x03
18 
19 /* Definition DVI Panel ID*/
20 /* Resolution: 640x480,   Channel: single, Dithering: Enable */
21 #define     DVI_PANEL_ID0_640X480       0x00
22 /* Resolution: 800x600,   Channel: single, Dithering: Enable */
23 #define     DVI_PANEL_ID1_800x600       0x01
24 /* Resolution: 1024x768,  Channel: single, Dithering: Enable */
25 #define     DVI_PANEL_ID1_1024x768      0x02
26 /* Resolution: 1280x768,  Channel: single, Dithering: Enable */
27 #define     DVI_PANEL_ID1_1280x768      0x03
28 /* Resolution: 1280x1024, Channel: dual,   Dithering: Enable */
29 #define     DVI_PANEL_ID1_1280x1024     0x04
30 /* Resolution: 1400x1050, Channel: dual,   Dithering: Enable */
31 #define     DVI_PANEL_ID1_1400x1050     0x05
32 /* Resolution: 1600x1200, Channel: dual,   Dithering: Enable */
33 #define     DVI_PANEL_ID1_1600x1200     0x06
34 
35 /* Define the version of EDID*/
36 #define     EDID_VERSION_1      1
37 #define     EDID_VERSION_2      2
38 
39 #define     DEV_CONNECT_DVI     0x01
40 #define     DEV_CONNECT_HDMI    0x02
41 
42 int viafb_dvi_sense(void);
43 void viafb_dvi_disable(void);
44 void viafb_dvi_enable(void);
45 bool viafb_tmds_trasmitter_identify(void);
46 void viafb_init_dvi_size(struct tmds_chip_information *tmds_chip,
47 	struct tmds_setting_information *tmds_setting);
48 void viafb_dvi_set_mode(const struct fb_var_screeninfo *var,
49 	u16 cxres, u16 cyres, int iga);
50 
51 #endif /* __DVI_H__ */
52