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Source at commit 734 created 13 years 2 months ago.
By meklort, Typo fixes, gma hack, nvidia dev id, more work needed for nvidia
1/*␊
2 * resolution.h␊
3 * ␊
4 *␊
5 * Created by Evan Lojewski on 3/4/10.␊
6 * Copyright 2009. All rights reserved.␊
7 *␊
8 */␊
9␊
10#include "shortatombios.h"␊
11#include "edid.h"␊
12␊
13#ifndef __RESOLUTION_H␊
14#define __RESOLUTION_H␊
15␊
16typedef struct _edid_mode {␊
17␉unsigned short pixel_clock;␊
18␉unsigned short h_active;␊
19␉unsigned short h_blanking;␊
20␉unsigned short v_active;␊
21␉unsigned short v_blanking;␊
22␉unsigned short h_sync_offset;␊
23␉unsigned short h_sync_width;␊
24␉unsigned short v_sync_offset;␊
25␉unsigned short v_sync_width;␊
26} edid_mode;␊
27␊
28␊
29␊
30void patchVideoBios();␊
31␊
32␊
33␊
34/* Copied from 915 resolution created by steve tomljenovic␊
35 *␊
36 * This code is based on the techniques used in :␊
37 *␊
38 * - 855patch. Many thanks to Christian Zietz (czietz gmx net)␊
39 * for demonstrating how to shadow the VBIOS into system RAM␊
40 * and then modify it.␊
41 *␊
42 * - 1280patch by Andrew Tipton (andrewtipton null li).␊
43 *␊
44 * - 855resolution by Alain Poirier␊
45 *␊
46 * This source code is into the public domain.␊
47 */␊
48␊
49#define VBIOS_START 0xc0000␊
50#define VBIOS_SIZE 0x10000␊
51␊
52#define FALSE 0␊
53#define TRUE 1␊
54␊
55#define MODE_TABLE_OFFSET_845G 617␊
56␊
57␊
58#define ATI_SIGNATURE1 "ATI MOBILITY RADEON"␊
59#define ATI_SIGNATURE2 "ATI Technologies Inc"␊
60#define NVIDIA_SIGNATURE "NVIDIA Corp"␊
61#define INTEL_SIGNATURE "Intel Corp"␊
62␊
63␊
64␊
65/*␊
66 * NVidia Defines and structures␊
67 */␊
68␊
69#define OFFSET_TO_VESA_TABLE_INDEX 2␊
70␊
71typedef struct {␊
72␉unsigned char␉ucTable_Major;␊
73␉unsigned char␉ucTable_Minor;␊
74␉unsigned char␉ucTable_Rev;␊
75␉unsigned short␉usTable_Size;␊
76} NV_COMMON_TABLE_HEADER;␊
77␊
78typedef struct {␊
79␉short reserved1;␊
80␉short reserved2;␊
81␉short reserved3;␊
82} NV_RESERVED;␊
83␊
84typedef struct {␊
85␉unsigned short␉usPixel_Clock;␊
86␉unsigned short␉usH_Active;␊
87␉NV_RESERVED␉␉reserved1;␊
88␉unsigned short␉usH_SyncStart;␊
89␉unsigned short␉usH_SyncEnd;␊
90␉unsigned short␉usH_Total;␊
91␉unsigned short␉usV_Active;␊
92␉NV_RESERVED␉␉reserved2;␊
93␉unsigned short␉usV_SyncStart;␊
94␉unsigned short␉usV_SyncEnd;␊
95␉unsigned short␉usV_Total;␊
96␉unsigned short␉reserved3;␊
97} NV_MODELINE;␊
98␊
99typedef struct {␊
100␉NV_COMMON_TABLE_HEADER␉sHeader;␊
101␉NV_MODELINE␉*␉␉␉sModelines;␊
102} NV_VESA_TABLE;␊
103␊
104/*---*/␊
105␊
106␊
107typedef enum {␊
108␉CT_UNKNOWN, CT_UNKNOWN_INTEL, CT_830, CT_845G, CT_855GM, CT_865G, ␊
109␉CT_915G, CT_915GM, CT_945G, CT_945GM, CT_945GME, CT_946GZ, ␊
110␉CT_955X, CT_G965, CT_Q965, CT_965GM, CT_975X, ␊
111␉CT_P35, CT_X48, CT_B43, CT_Q45, CT_P45,␊
112␉CT_GM45, CT_G41, CT_G31, CT_G45, CT_500, CT_3150␊
113} chipset_type;␊
114␊
115␊
116␊
117typedef enum {␊
118␉BT_UNKNOWN, BT_1, BT_2, BT_3, BT_ATI_1, BT_ATI_2, BT_NVDA␊
119} bios_type;␊
120␊
121␊
122typedef struct {␊
123␉char *base;␊
124␉ATOM_ROM_HEADER *AtomRomHeader;␊
125␉unsigned short *MasterCommandTables;␊
126␉unsigned short *MasterDataTables;␊
127} bios_tables_t;␊
128␊
129typedef struct {␊
130␉UInt8 mode;␊
131␉UInt8 bits_per_pixel;␊
132␉UInt16 resolution;␊
133␉UInt8 unknown;␊
134} __attribute__((packed)) vbios_mode;␊
135␊
136typedef struct {␊
137␉UInt8 unknow1[2];␊
138␉UInt8 x1;␊
139␉UInt8 x_total;␊
140␉UInt8 x2;␊
141␉UInt8 y1;␊
142␉UInt8 y_total;␊
143␉UInt8 y2;␊
144} __attribute__((packed)) vbios_resolution_type1;␊
145␊
146typedef struct {␊
147␉unsigned long clock;␊
148␉␊
149␉UInt16 x1;␊
150␉UInt16 htotal;␊
151␉UInt16 x2;␊
152␉UInt16 hblank;␊
153␉UInt16 hsyncstart;␊
154␉UInt16 hsyncend;␊
155␉UInt16 y1;␊
156 UInt16 vtotal;␊
157 UInt16 y2;␊
158␉UInt16 vblank;␊
159␉UInt16 vsyncstart;␊
160␉UInt16 vsyncend;␊
161} __attribute__((packed)) vbios_modeline_type2;␊
162␊
163typedef struct {␊
164␉UInt8 xchars;␊
165␉UInt8 ychars;␊
166␉UInt8 unknown[4];␊
167␉␊
168␉vbios_modeline_type2 modelines[];␊
169} __attribute__((packed)) vbios_resolution_type2;␊
170␊
171typedef struct {␊
172␉unsigned long clock;␊
173␉␊
174␉UInt16 x1;␊
175␉UInt16 htotal;␊
176␉UInt16 x2;␊
177␉UInt16 hblank;␊
178␉UInt16 hsyncstart;␊
179␉UInt16 hsyncend;␊
180␉␊
181␉UInt16 y1;␊
182␉UInt16 vtotal;␊
183␉UInt16 y2;␊
184␉UInt16 vblank;␊
185␉UInt16 vsyncstart;␊
186␉UInt16 vsyncend;␊
187␉␊
188␉UInt16 timing_h;␊
189␉UInt16 timing_v;␊
190␉␊
191␉UInt8 unknown[6];␊
192} __attribute__((packed)) vbios_modeline_type3;␊
193␊
194typedef struct {␊
195␉unsigned char unknown[6];␊
196␉␊
197 vbios_modeline_type3 modelines[];␊
198} __attribute__((packed)) vbios_resolution_type3;␊
199␊
200typedef struct {␊
201␉UInt32 chipset_id;␊
202␉chipset_type chipset;␊
203␉bios_type bios;␊
204␉␊
205␉bios_tables_t ati_tables;␊
206␊
207␉␊
208␉UInt32 bios_fd;␊
209␉char* bios_ptr;␊
210␉␊
211␉vbios_mode * mode_table;␊
212␉char * ati_mode_table;␊
213␉char * nv_mode_table;␊
214␊
215␉UInt32 mode_table_size;␊
216␉UInt8 b1, b2;␊
217␉␊
218␉UInt8 unlocked;␊
219} vbios_map;␊
220␊
221␊
222␊
223vbios_map * open_vbios(chipset_type);␊
224void close_vbios (vbios_map*);␊
225void unlock_vbios(vbios_map*);␊
226void relock_vbios(vbios_map*);␊
227void set_mode(vbios_map*, UInt32, UInt32, UInt32, UInt32, UInt32);␊
228␊
229#endif //__RESOLUTION_H␊
230

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