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d60defb7b2
This patch replaces the old timing setup code with a redesigned one. The new code might be slightly faster as it has no conditinals and does not write the same register multiple times. Also it makes the comparison to the documentation easier. Regressions are unlikely but could happen as a lot of hardware is undocumented. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
62 lines
1.8 KiB
C
62 lines
1.8 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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* Copyright 2010 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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*
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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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*
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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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*
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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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/*
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* basic modesetting functions
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*/
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#ifndef __VIA_MODESETTING_H__
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#define __VIA_MODESETTING_H__
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#include <linux/types.h>
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#define VIA_PITCH_SIZE (1<<3)
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#define VIA_PITCH_MAX 0x3FF8
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struct display_timing {
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u16 hor_total;
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u16 hor_addr;
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u16 hor_blank_start;
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u16 hor_blank_end;
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u16 hor_sync_start;
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u16 hor_sync_end;
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u16 ver_total;
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u16 ver_addr;
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u16 ver_blank_start;
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u16 ver_blank_end;
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u16 ver_sync_start;
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u16 ver_sync_end;
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};
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void via_set_primary_timing(const struct display_timing *timing);
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void via_set_secondary_timing(const struct display_timing *timing);
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void via_set_primary_address(u32 addr);
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void via_set_secondary_address(u32 addr);
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void via_set_primary_pitch(u32 pitch);
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void via_set_secondary_pitch(u32 pitch);
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void via_set_primary_color_depth(u8 depth);
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void via_set_secondary_color_depth(u8 depth);
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#endif /* __VIA_MODESETTING_H__ */
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