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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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532f9169db
This patch implementes this mode (viafb_SAMM_ON set and viafb_dual_fb not set) in a useful way for CRT and DVI devices. The same content is shown on both devices in different video modes. The first (primary) resolution must not be bigger than the secondary one and determines the visible region. The same content is shown centered on the secondary output. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
66 lines
2.5 KiB
C
66 lines
2.5 KiB
C
/*
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* Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
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* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation;
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* either version 2, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR
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* A PARTICULAR PURPOSE.See the GNU General Public License
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* for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __DVI_H__
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#define __DVI_H__
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/*Definition TMDS Device ID register*/
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#define VT1632_DEVICE_ID_REG 0x02
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#define VT1632_DEVICE_ID 0x92
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#define GET_DVI_SIZE_BY_SYSTEM_BIOS 0x01
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#define GET_DVI_SIZE_BY_VGA_BIOS 0x02
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#define GET_DVI_SZIE_BY_HW_STRAPPING 0x03
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/* Definition DVI Panel ID*/
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/* Resolution: 640x480, Channel: single, Dithering: Enable */
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#define DVI_PANEL_ID0_640X480 0x00
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/* Resolution: 800x600, Channel: single, Dithering: Enable */
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#define DVI_PANEL_ID1_800x600 0x01
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/* Resolution: 1024x768, Channel: single, Dithering: Enable */
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#define DVI_PANEL_ID1_1024x768 0x02
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/* Resolution: 1280x768, Channel: single, Dithering: Enable */
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#define DVI_PANEL_ID1_1280x768 0x03
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/* Resolution: 1280x1024, Channel: dual, Dithering: Enable */
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#define DVI_PANEL_ID1_1280x1024 0x04
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/* Resolution: 1400x1050, Channel: dual, Dithering: Enable */
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#define DVI_PANEL_ID1_1400x1050 0x05
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/* Resolution: 1600x1200, Channel: dual, Dithering: Enable */
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#define DVI_PANEL_ID1_1600x1200 0x06
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/* Define the version of EDID*/
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#define EDID_VERSION_1 1
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#define EDID_VERSION_2 2
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#define DEV_CONNECT_DVI 0x01
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#define DEV_CONNECT_HDMI 0x02
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int viafb_dvi_sense(void);
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void viafb_dvi_disable(void);
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void viafb_dvi_enable(void);
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bool __devinit viafb_tmds_trasmitter_identify(void);
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void __devinit viafb_init_dvi_size(struct tmds_chip_information *tmds_chip,
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struct tmds_setting_information *tmds_setting);
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void viafb_dvi_set_mode(const struct fb_var_screeninfo *var,
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u16 cxres, u16 cyres, int iga);
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#endif /* __DVI_H__ */
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