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Root/trunk/i386/libsaio/915resolution.h

1␊
2/* Copied from 915 resolution created by steve tomljenovic␊
3 *␊
4 * This code is based on the techniques used in :␊
5 *␊
6 * - 855patch. Many thanks to Christian Zietz (czietz gmx net)␊
7 * for demonstrating how to shadow the VBIOS into system RAM␊
8 * and then modify it.␊
9 *␊
10 * - 1280patch by Andrew Tipton (andrewtipton null li).␊
11 *␊
12 * - 855resolution by Alain Poirier␊
13 *␊
14 * This source code is into the public domain.␊
15 */␊
16#ifndef __915_RESOLUTION_H␊
17#define __915_RESOLUTION_H␊
18␊
19#include "shortatombios.h"␊
20#include "edid.h"␊
21␊
22#define NEW(a) ((a *)(malloc(sizeof(a))))␊
23#define FREE(a) (free(a))␊
24␊
25#define VBIOS_START 0xc0000␊
26#define VBIOS_SIZE 0x10000␊
27␊
28#define FALSE 0␊
29#define TRUE 1␊
30␊
31#define MODE_TABLE_OFFSET_845G 617␊
32␊
33␊
34#define ATI_SIGNATURE1 "ATI MOBILITY RADEON"␊
35#define ATI_SIGNATURE2 "ATI Technologies Inc"␊
36#define NVIDIA_SIGNATURE "NVIDIA Corp"␊
37#define INTEL_SIGNATURE "Intel Corp"␊
38␊
39typedef struct {␊
40␉unsigned char width;␊
41␉unsigned char height;␊
42} s_aspect;␊
43␊
44/*␊
45 * NVidia Defines and structures␊
46 */␊
47␊
48#define OFFSET_TO_VESA_TABLE_INDEX 2␊
49␊
50typedef struct {␊
51␉unsigned char␉ucTable_Major;␊
52␉unsigned char␉ucTable_Minor;␊
53␉unsigned char␉ucTable_Rev;␊
54␉unsigned short␉usTable_Size;␊
55} NV_COMMON_TABLE_HEADER;␊
56␊
57typedef struct {␊
58␉unsigned short␉usPixel_Clock;␊
59␉unsigned short␉usH_Active;␊
60␉unsigned short usH_Active_minus_One;␊
61␉unsigned short␉reserved1;␊
62␉unsigned short usH_Active_minus_One_;␊
63␉unsigned short␉usH_SyncStart;␊
64␉unsigned short␉usH_SyncEnd;␊
65␉unsigned short␉usH_Total;␊
66␉unsigned short␉usV_Active;␊
67␉unsigned short usV_Active_minus_One;␊
68␉unsigned short␉reserved2;␊
69␉unsigned short usV_Active_minus_One_;␊
70␉unsigned short␉usV_SyncStart;␊
71␉unsigned short␉usV_SyncEnd;␊
72␉unsigned short␉usV_Total;␊
73␉unsigned short␉reserved3;␊
74} NV_MODELINE;␊
75␊
76typedef struct {␊
77␉unsigned short h_disp;␊
78␉unsigned short v_disp;␊
79␉unsigned char h_blank;␊
80␉unsigned char h_syncoffset;␊
81␉unsigned char h_syncwidth;␊
82␉unsigned char v_blank;␊
83␉unsigned char v_syncwidth;␊
84} NV_MODELINE_2;␊
85␊
86typedef struct {␊
87␉NV_COMMON_TABLE_HEADER␉sHeader;␊
88␉NV_MODELINE␉*␉␉␉sModelines;␊
89} NV_VESA_TABLE;␊
90␊
91/*---*/␊
92␊
93␊
94typedef enum {␊
95␉CT_UNKWN, CT_830, CT_845G, CT_855GM, CT_865G, ␊
96␉CT_915G, CT_915GM, CT_945G, CT_945GM, CT_945GME, CT_946GZ, ␊
97␉CT_955X, CT_G965, CT_Q965, CT_965GM, CT_975X, ␊
98␉CT_P35, CT_X48, CT_B43, CT_Q45, CT_P45,␊
99␉CT_GM45, CT_G41, CT_G31, CT_G45, CT_500␊
100} chipset_type;␊
101␊
102␊
103typedef enum {␊
104␉BT_UNKWN, BT_1, BT_2, BT_3, BT_ATI_1, BT_ATI_2, BT_NVDA␊
105} bios_type;␊
106␊
107typedef struct {␊
108 unsigned char *base;␊
109 ATOM_ROM_HEADER *AtomRomHeader;␊
110 unsigned short *MasterCommandTables;␊
111 unsigned short *MasterDataTables;␊
112} bios_tables_t;␊
113␊
114typedef struct {␊
115␉UInt8 mode;␊
116␉UInt8 bits_per_pixel;␊
117␉UInt16 resolution;␊
118␉UInt8 unknown;␊
119} __attribute__((packed)) vbios_mode;␊
120␊
121typedef struct {␊
122␉UInt8 unknow1[2];␊
123␉UInt8 x1;␊
124␉UInt8 x_total;␊
125␉UInt8 x2;␊
126␉UInt8 y1;␊
127␉UInt8 y_total;␊
128␉UInt8 y2;␊
129} __attribute__((packed)) vbios_resolution_type1;␊
130␊
131typedef struct {␊
132␉unsigned long clock;␊
133␉␊
134␉UInt16 x1;␊
135␉UInt16 htotal;␊
136␉UInt16 x2;␊
137␉UInt16 hblank;␊
138␉UInt16 hsyncstart;␊
139␉UInt16 hsyncend;␊
140␉UInt16 y1;␊
141 UInt16 vtotal;␊
142 UInt16 y2;␊
143␉UInt16 vblank;␊
144␉UInt16 vsyncstart;␊
145␉UInt16 vsyncend;␊
146} __attribute__((packed)) vbios_modeline_type2;␊
147␊
148typedef struct {␊
149␉UInt8 xchars;␊
150␉UInt8 ychars;␊
151␉UInt8 unknown[4];␊
152␉␊
153␉vbios_modeline_type2 modelines[];␊
154} __attribute__((packed)) vbios_resolution_type2;␊
155␊
156typedef struct {␊
157␉unsigned long clock;␊
158␉␊
159␉UInt16 x1;␊
160␉UInt16 htotal;␊
161␉UInt16 x2;␊
162␉UInt16 hblank;␊
163␉UInt16 hsyncstart;␊
164␉UInt16 hsyncend;␊
165␉␊
166␉UInt16 y1;␊
167␉UInt16 vtotal;␊
168␉UInt16 y2;␊
169␉UInt16 vblank;␊
170␉UInt16 vsyncstart;␊
171␉UInt16 vsyncend;␊
172␉␊
173␉UInt16 timing_h;␊
174␉UInt16 timing_v;␊
175␉␊
176␉UInt8 unknown[6];␊
177} __attribute__((packed)) vbios_modeline_type3;␊
178␊
179typedef struct {␊
180␉unsigned char unknown[6];␊
181␉␊
182 vbios_modeline_type3 modelines[];␊
183} __attribute__((packed)) vbios_resolution_type3;␊
184␊
185typedef struct {␊
186␉UInt32 chipset_id;␊
187␉chipset_type chipset;␊
188␉bios_type bios;␊
189␉␊
190␉bios_tables_t ati_tables;␊
191␉␊
192␉UInt32 bios_fd;␊
193␉unsigned char* bios_backup_ptr;␊
194␉unsigned char* bios_ptr;␊
195␉␊
196␉vbios_mode * mode_table;␊
197␉char * ati_mode_table;␊
198␉char * nv_mode_table;␊
199␉char * nv_mode_table_2;␊
200␉␊
201␉UInt32 mode_table_size;␊
202␉UInt8 b1, b2;␊
203␉␊
204␉UInt8 unlocked;␊
205} vbios_map;␊
206␊
207␊
208␊
209void display_map_info(vbios_map*);␊
210vbios_map * open_vbios(chipset_type);␊
211void close_vbios (vbios_map*);␊
212void unlock_vbios(vbios_map*);␊
213void relock_vbios(vbios_map*);␊
214void save_vbios(vbios_map*);␊
215void restore_vbios(vbios_map*);␊
216void set_mode(vbios_map*, UInt32, UInt32, UInt32, UInt32, UInt32);␊
217void list_modes(vbios_map *map, UInt32 raw);␊
218␊
219#endif␊
220

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