xref: /openbmc/linux/drivers/video/fbdev/via/dvi.h (revision 4f3db074)
1 /*
2  * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
4 
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public
7  * License as published by the Free Software Foundation;
8  * either version 2, or (at your option) any later version.
9 
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
13  * A PARTICULAR PURPOSE.See the GNU General Public License
14  * for more details.
15 
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc.,
19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20  */
21 
22 #ifndef __DVI_H__
23 #define __DVI_H__
24 
25 /*Definition TMDS Device ID register*/
26 #define     VT1632_DEVICE_ID_REG        0x02
27 #define     VT1632_DEVICE_ID            0x92
28 
29 #define     GET_DVI_SIZE_BY_SYSTEM_BIOS     0x01
30 #define     GET_DVI_SIZE_BY_VGA_BIOS        0x02
31 #define     GET_DVI_SZIE_BY_HW_STRAPPING    0x03
32 
33 /* Definition DVI Panel ID*/
34 /* Resolution: 640x480,   Channel: single, Dithering: Enable */
35 #define     DVI_PANEL_ID0_640X480       0x00
36 /* Resolution: 800x600,   Channel: single, Dithering: Enable */
37 #define     DVI_PANEL_ID1_800x600       0x01
38 /* Resolution: 1024x768,  Channel: single, Dithering: Enable */
39 #define     DVI_PANEL_ID1_1024x768      0x02
40 /* Resolution: 1280x768,  Channel: single, Dithering: Enable */
41 #define     DVI_PANEL_ID1_1280x768      0x03
42 /* Resolution: 1280x1024, Channel: dual,   Dithering: Enable */
43 #define     DVI_PANEL_ID1_1280x1024     0x04
44 /* Resolution: 1400x1050, Channel: dual,   Dithering: Enable */
45 #define     DVI_PANEL_ID1_1400x1050     0x05
46 /* Resolution: 1600x1200, Channel: dual,   Dithering: Enable */
47 #define     DVI_PANEL_ID1_1600x1200     0x06
48 
49 /* Define the version of EDID*/
50 #define     EDID_VERSION_1      1
51 #define     EDID_VERSION_2      2
52 
53 #define     DEV_CONNECT_DVI     0x01
54 #define     DEV_CONNECT_HDMI    0x02
55 
56 int viafb_dvi_sense(void);
57 void viafb_dvi_disable(void);
58 void viafb_dvi_enable(void);
59 bool viafb_tmds_trasmitter_identify(void);
60 void viafb_init_dvi_size(struct tmds_chip_information *tmds_chip,
61 	struct tmds_setting_information *tmds_setting);
62 void viafb_dvi_set_mode(const struct fb_var_screeninfo *var,
63 	u16 cxres, u16 cyres, int iga);
64 
65 #endif /* __DVI_H__ */
66