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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␊
11#ifndef __RESOLUTION_H␊
12#define __RESOLUTION_H␊
13␊
14#include "shortatombios.h"␊
15#include "edid.h"␊
16␊
17//Slice - moved to edid.h␊
18/*␊
19typedef struct _edid_mode {␊
20␉unsigned short pixel_clock;␊
21␉unsigned short h_active;␊
22␉unsigned short h_blanking;␊
23␉unsigned short v_active;␊
24␉unsigned short v_blanking;␊
25␉unsigned short h_sync_offset;␊
26␉unsigned short h_sync_width;␊
27␉unsigned short v_sync_offset;␊
28␉unsigned short v_sync_width;␊
29} edid_mode;␊
30*/␊
31␊
32␊
33void patchVideoBios();␊
34␊
35␊
36␊
37/* Copied from 915 resolution created by steve tomljenovic␊
38 *␊
39 * This code is based on the techniques used in :␊
40 *␊
41 * - 855patch. Many thanks to Christian Zietz (czietz gmx net)␊
42 * for demonstrating how to shadow the VBIOS into system RAM␊
43 * and then modify it.␊
44 *␊
45 * - 1280patch by Andrew Tipton (andrewtipton null li).␊
46 *␊
47 * - 855resolution by Alain Poirier␊
48 *␊
49 * This source code is into the public domain.␊
50 */␊
51␊
52#define VBIOS_START 0xc0000␊
53#define VBIOS_SIZE 0x10000␊
54␊
55#define FALSE 0␊
56#define TRUE 1␊
57␊
58#define MODE_TABLE_OFFSET_845G 617␊
59␊
60␊
61#define ATI_SIGNATURE1 "ATI MOBILITY RADEON"␊
62#define ATI_SIGNATURE2 "ATI Technologies Inc"␊
63#define NVIDIA_SIGNATURE "NVIDIA Corp"␊
64#define INTEL_SIGNATURE "Intel Corp"␊
65␊
66␊
67␊
68/*␊
69 * NVidia Defines and structures␊
70 */␊
71␊
72#define OFFSET_TO_VESA_TABLE_INDEX 2␊
73␊
74typedef struct {␊
75␉unsigned char␉ucTable_Major;␊
76␉unsigned char␉ucTable_Minor;␊
77␉unsigned char␉ucTable_Rev;␊
78␉unsigned short␉usTable_Size;␊
79} NV_COMMON_TABLE_HEADER;␊
80␊
81typedef struct {␊
82␉short reserved1;␊
83␉short reserved2;␊
84␉short reserved3;␊
85} NV_RESERVED;␊
86␊
87typedef struct {␊
88␉unsigned short␉usPixel_Clock;␊
89␉unsigned short␉usH_Active;␊
90␉NV_RESERVED␉␉reserved1;␊
91␉unsigned short␉usH_SyncStart;␊
92␉unsigned short␉usH_SyncEnd;␊
93␉unsigned short␉usH_Total;␊
94␉unsigned short␉usV_Active;␊
95␉NV_RESERVED␉␉reserved2;␊
96␉unsigned short␉usV_SyncStart;␊
97␉unsigned short␉usV_SyncEnd;␊
98␉unsigned short␉usV_Total;␊
99␉unsigned short␉reserved3;␊
100} NV_MODELINE;␊
101␊
102typedef struct {␊
103␉NV_COMMON_TABLE_HEADER␉sHeader;␊
104␉NV_MODELINE␉*␉␉␉sModelines;␊
105} NV_VESA_TABLE;␊
106␊
107/*---*/␊
108␊
109␊
110typedef enum {␊
111␉CT_UNKNOWN, CT_UNKNOWN_INTEL, CT_830, CT_845G, CT_855GM, CT_865G, ␊
112␉CT_915G, CT_915GM, CT_945G, CT_945GM, CT_945GME, CT_946GZ, ␊
113␉CT_955X, CT_G965, CT_Q965, CT_965GM, CT_975X, ␊
114␉CT_P35, CT_X48, CT_B43, CT_Q45, CT_P45,␊
115␉CT_GM45, CT_G41, CT_G31, CT_G45, CT_500, CT_3150␊
116} chipset_type;␊
117␊
118␊
119␊
120typedef enum {␊
121␉BT_UNKNOWN, BT_1, BT_2, BT_3, BT_ATI_1, BT_ATI_2, BT_NVDA, BT_INTEL␊
122} bios_type;␊
123␊
124␊
125typedef struct {␊
126␉char *base;␊
127␉ATOM_ROM_HEADER *AtomRomHeader;␊
128␉unsigned short *MasterCommandTables;␊
129␉unsigned short *MasterDataTables;␊
130} bios_tables_t;␊
131␊
132typedef struct {␊
133␉UInt8 mode;␊
134␉UInt8 bits_per_pixel;␊
135␉UInt16 resolution;␊
136␉UInt8 unknown;␊
137} __attribute__((packed)) vbios_mode;␊
138␊
139typedef struct {␊
140␉UInt8 unknow1[2];␊
141␉UInt8 x1;␊
142␉UInt8 x_total;␊
143␉UInt8 x2;␊
144␉UInt8 y1;␊
145␉UInt8 y_total;␊
146␉UInt8 y2;␊
147} __attribute__((packed)) vbios_resolution_type1;␊
148␊
149typedef struct {␊
150␉unsigned long clock;␊
151␉␊
152␉UInt16 x1;␊
153␉UInt16 htotal;␊
154␉UInt16 x2;␊
155␉UInt16 hblank;␊
156␉UInt16 hsyncstart;␊
157␉UInt16 hsyncend;␊
158␉UInt16 y1;␊
159 UInt16 vtotal;␊
160 UInt16 y2;␊
161␉UInt16 vblank;␊
162␉UInt16 vsyncstart;␊
163␉UInt16 vsyncend;␊
164} __attribute__((packed)) vbios_modeline_type2;␊
165␊
166typedef struct {␊
167␉UInt8 xchars;␊
168␉UInt8 ychars;␊
169␉UInt8 unknown[4];␊
170␉␊
171␉vbios_modeline_type2 modelines[];␊
172} __attribute__((packed)) vbios_resolution_type2;␊
173␊
174typedef struct {␊
175␉unsigned long clock;␊
176␉␊
177␉UInt16 x1;␊
178␉UInt16 htotal;␊
179␉UInt16 x2;␊
180␉UInt16 hblank;␊
181␉UInt16 hsyncstart;␊
182␉UInt16 hsyncend;␊
183␉␊
184␉UInt16 y1;␊
185␉UInt16 vtotal;␊
186␉UInt16 y2;␊
187␉UInt16 vblank;␊
188␉UInt16 vsyncstart;␊
189␉UInt16 vsyncend;␊
190␉␊
191␉UInt16 timing_h;␊
192␉UInt16 timing_v;␊
193␉␊
194␉UInt8 unknown[6];␊
195} __attribute__((packed)) vbios_modeline_type3;␊
196␊
197typedef struct {␊
198␉unsigned char unknown[6];␊
199␉␊
200 vbios_modeline_type3 modelines[];␊
201} __attribute__((packed)) vbios_resolution_type3;␊
202␊
203typedef struct {␊
204␉UInt32 chipset_id;␊
205␉chipset_type chipset;␊
206␉bios_type bios;␊
207␉␊
208␉bios_tables_t ati_tables;␊
209␊
210␉␊
211␉UInt32 bios_fd;␊
212␉char* bios_ptr;␊
213␉␊
214␉vbios_mode * mode_table;␊
215␉char * ati_mode_table;␊
216␉char * nv_mode_table;␊
217␊
218␉UInt32 mode_table_size;␊
219␉UInt8 b1, b2;␊
220␉␊
221␉UInt8 unlocked;␊
222} vbios_map;␊
223␊
224␊
225␊
226vbios_map * open_vbios(chipset_type);␊
227void close_vbios (vbios_map*);␊
228void unlock_vbios(vbios_map*);␊
229void relock_vbios(vbios_map*);␊
230void set_mode(vbios_map*, UInt32, UInt32, UInt32, UInt32, UInt32);␊
231␊
232#endif //__RESOLUTION_H␊
233

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