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
42int viafb_dvi_sense(void);
43void viafb_dvi_disable(void);
44void viafb_dvi_enable(void);
45bool viafb_tmds_trasmitter_identify(void);
46void viafb_init_dvi_size(struct tmds_chip_information *tmds_chip,
47	struct tmds_setting_information *tmds_setting);
48void viafb_dvi_set_mode(const struct fb_var_screeninfo *var,
49	u16 cxres, u16 cyres, int iga);
50
51#endif /* __DVI_H__ */
52