ebb29fb47e
This patch starts to use the information in var for modesetting for CRT and DVI devices. This is the right thing as it allows us to use more generic modes than the ones predefined by VIA. We do not yet allow more generic modes as check_var still limits them to the predefined ones but with this patch applied it would be really easy to do so. A problem was VIAs SAMM mode as it has 2 different modes but just one frame buffer device. This is solved by creating a pseudo var which contains enough information to use it for modesetting. Hopefully one day we can use information in var for all modes that do not involve hardware scaling. Well I'd like to say that the chance of regressions is low but it is quite likely that the behaviour in some cases changed especially when SAMM is involved. I hope we made it better than before in particular the DVI frequency check was probably broken before and hopefully works better now. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
65 lines
2.4 KiB
C
65 lines
2.4 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, int iga);
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#endif /* __DVI_H__ */
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