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https://github.com/CloverHackyColor/CloverBootloader.git
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74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
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/*
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* nviviaresolution.h
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*
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*
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* Created by Le Bidou on 19/03/10.
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* Copyright 2010 ---. All rights reserved.
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*
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*/
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#ifndef _NVDA_RESOLUTION_HEADER_
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#define _NVDA_RESOLUTION_HEADER_
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#include "libsaio.h"
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#include "autoresolution.h"
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#define NVIDIA_SIGNATURE "NVIDIA Corp"
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#define OFFSET_TO_VESA_TABLE_INDEX 2
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#define MAIN_VESA_TABLE 0
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#define SECOND_VESA_TABLE 1
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typedef struct {
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unsigned char ucTable_Major; //These names are probably wrong
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unsigned char ucTable_Minor;
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unsigned char ucTable_Rev;
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unsigned short usTable_Size;
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} NV_COMMON_TABLE_HEADER;
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typedef struct {
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unsigned short usPixel_Clock;
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unsigned short usH_Active;
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unsigned short usH_Active_minus_One;
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unsigned short reserved1;
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unsigned short usH_Active_minus_One_;
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unsigned short usH_SyncStart;
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unsigned short usH_SyncEnd;
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unsigned short usH_Total;
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unsigned short usV_Active;
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unsigned short usV_Active_minus_One;
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unsigned short reserved2;
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unsigned short usV_Active_minus_One_;
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unsigned short usV_SyncStart;
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unsigned short usV_SyncEnd;
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unsigned short usV_Total;
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unsigned short reserved3;
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} NV_MODELINE;
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typedef struct {
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unsigned short h_disp;
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unsigned short v_disp;
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unsigned char h_blank;
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unsigned char h_syncoffset;
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unsigned char h_syncwidth;
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unsigned char v_blank;
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//unsigned char v_syncwidth;
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unsigned char flags; //looks like flags & 1 means "Graphics Mode", to oppose to "Console Mode"
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//on 7xxx the high four bits look like a mode id number.
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//on 8xxx only the low four bits are used, standard graphics mode are always 5.
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// it can be 1 (1400x1050 and 2048x1536) (HSync High, VSync High ?)
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// 3 (1440x900, 1680x1050 and 1920x1200) (Hsync High, VSync Low ?)
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// 3 (Standard Timings) (Hsync Low, VSync High ?)
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// or 7 (1280x800 and 768x340) (Hync Low, VSync Low ?)
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} NV_MODELINE_2;
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typedef struct {
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NV_COMMON_TABLE_HEADER sHeader;
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NV_MODELINE * sModelines;
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} NV_VESA_TABLE;
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vbios_map * open_nvidia_vbios(vbios_map *map);
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bool nvidia_set_mode(vbios_map* map, UInt8 idx, UInt32* x, UInt32* y, char Type);
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#endif
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