1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/* $XFree86: xc/programs/Xserver/hw/xfree86/ddc/interpret_edid.c,v 1.8 2000/07/13 21:31:37 tsi Exp $ */
/* interpret_edid.c: interpret a primary EDID block
*
* Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE>
*/
#include "misc.h"
#include "xf86.h"
#include "xf86_ansic.h"
#include "xf86_OSproc.h"
#define _PARSE_EDID_
#include "xf86DDC.h"
static void get_vendor_section(Uchar*, struct vendor *);
static void get_version_section(Uchar*, struct edid_version *);
static void get_display_section(Uchar*, struct disp_features *);
static void get_established_timing_section(Uchar*, struct established_timings *);
static void get_std_timing_section(Uchar*, struct std_timings *);
static void get_dt_md_section(Uchar *, struct edid_version *,
struct detailed_monitor_section *det_mon);
static void copy_string(Uchar *, Uchar *);
static void get_dst_timing_section(Uchar *, struct std_timings *);
static void get_monitor_ranges(Uchar *, struct monitor_ranges *);
static void get_whitepoint_section(Uchar *, struct whitePoints *);
static void get_detailed_timing_section(Uchar*, struct detailed_timings *);
xf86MonPtr
xf86InterpretEDID(int scrnIndex, Uchar *block)
{
xf86MonPtr m;
if (!block) return NULL;
if (! (m = xnfcalloc(sizeof(xf86Monitor),1))) return NULL;
m->scrnIndex = scrnIndex;
m->rawData = block;
get_vendor_section(SECTION(VENDOR_SECTION,block),&m->vendor);
get_version_section(SECTION(VERSION_SECTION,block),&m->ver);
get_display_section(SECTION(DISPLAY_SECTION,block),&m->features);
get_established_timing_section(SECTION(ESTABLISHED_TIMING_SECTION,block),
&m->timings1);
get_std_timing_section(SECTION(STD_TIMING_SECTION,block),m->timings2);
get_dt_md_section(SECTION(DET_TIMING_SECTION,block),&m->ver, m->det_mon);
m->no_sections = (int)*(char *)SECTION(NO_EDID,block);
return (m);
}
static void
get_vendor_section(Uchar *c, struct vendor *r)
{
r->name[0] = L1;
r->name[1] = L2;
r->name[2] = L3;
r->name[3] = '\0';
r->prod_id = PROD_ID;
r->serial = SERIAL_NO;
r->week = WEEK;
r->year = YEAR;
}
static void
get_version_section(Uchar *c, struct edid_version *r)
{
r->version = VERSION;
r->revision = REVISION;
}
static void
get_display_section(Uchar *c, struct disp_features *r)
{
r->input_type = INPUT_TYPE;
r->input_voltage = INPUT_VOLTAGE;
r->input_setup = SETUP;
r->input_sync = SYNC;
r->hsize = HSIZE_MAX;
r->vsize = VSIZE_MAX;
r->gamma = GAMMA;
r->dpms = DPMS;
r->display_type = DISPLAY_TYPE;
r->msc = MSC;
r->redx = REDX;
r->redy = REDY;
r->greenx = GREENX;
r->greeny = GREENY;
r->bluex = BLUEX;
r->bluey = BLUEY;
r->whitex = WHITEX;
r->whitey = WHITEY;
}
static void
get_established_timing_section(Uchar *c, struct established_timings *r)
{
r->t1 = T1;
r->t2 = T2;
r->t_manu = T_MANU;
}
static void
get_std_timing_section(Uchar *c, struct std_timings *r)
{
int i;
for (i=0;i<STD_TIMINGS;i++){
r[i].hsize = HSIZE1;
VSIZE1(r[i].vsize);
r[i].refresh = REFRESH_R;
r[i].id = STD_TIMING_ID;
NEXT_STD_TIMING;
}
}
static void
get_dt_md_section(Uchar *c, struct edid_version *ver,
struct detailed_monitor_section *det_mon)
{
int i;
for (i=0;i<DET_TIMINGS;i++) {
if (ver->version == 1 && ver->revision >= 1 && IS_MONITOR_DESC) {
switch (MONITOR_DESC_TYPE) {
case SERIAL_NUMBER:
det_mon[i].type = DS_SERIAL;
copy_string(c,det_mon[i].section.serial);
break;
case ASCII_STR:
det_mon[i].type = DS_ASCII_STR;
copy_string(c,det_mon[i].section.ascii_data);
break;
case MONITOR_RANGES:
det_mon[i].type = DS_RANGES;
get_monitor_ranges(c,&det_mon[i].section.ranges);
break;
case MONITOR_NAME:
det_mon[i].type = DS_NAME;
copy_string(c,det_mon[i].section.name);
break;
case ADD_COLOR_POINT:
det_mon[i].type = DS_WHITE_P;
get_whitepoint_section(c,det_mon[i].section.wp);
break;
case ADD_STD_TIMINGS:
det_mon[i].type = DS_STD_TIMINGS;
get_dst_timing_section(c,det_mon[i].section.std_t);
break;
}
} else {
det_mon[i].type = DT;
get_detailed_timing_section(c,&det_mon[i].section.d_timings);
}
NEXT_DT_MD_SECTION;
}
}
static void
copy_string(Uchar *c, Uchar *s)
{
int i;
c = c + 5;
for (i = 0; (i < 13 && *c != 0x0A); i++)
*(s++) = *(c++);
*s = 0;
while (i-- && (*--s == 0x20)) *s = 0;
}
static void
get_dst_timing_section(Uchar *c, struct std_timings *t)
{
int j;
c = c + 5;
for (j = 0; j < 5; j++) {
t[j].hsize = HSIZE1;
VSIZE1(t[j].vsize);
t[j].refresh = REFRESH_R;
t[j].id = STD_TIMING_ID;
NEXT_STD_TIMING;
}
}
static void
get_monitor_ranges(Uchar *c, struct monitor_ranges *r)
{
r->min_v = MIN_V;
r->max_v = MAX_V;
r->min_h = MIN_H;
r->max_h = MAX_H;
r->max_clock = MAX_CLOCK * 10;
}
static void
get_whitepoint_section(Uchar *c, struct whitePoints *wp)
{
wp[1].white_x = WHITEX1;
wp[1].white_y = WHITEY1;
wp[2].white_x = WHITEX2;
wp[2].white_y = WHITEY2;
wp[1].index = WHITE_INDEX1;
wp[2].index = WHITE_INDEX2;
wp[1].white_gamma = WHITE_GAMMA1;
wp[2].white_gamma = WHITE_GAMMA2;
}
static void
get_detailed_timing_section(Uchar *c, struct detailed_timings *r)
{
r->clock = PIXEL_CLOCK;
r->h_active = H_ACTIVE;
r->h_blanking = H_BLANK;
r->v_active = V_ACTIVE;
r->v_blanking = V_BLANK;
r->h_sync_off = H_SYNC_OFF;
r->h_sync_width = H_SYNC_WIDTH;
r->v_sync_off = V_SYNC_OFF;
r->v_sync_width = V_SYNC_WIDTH;
r->h_size = H_SIZE;
r->v_size = V_SIZE;
r->h_border = H_BORDER;
r->v_border = V_BORDER;
r->interlaced = INTERLACED;
r->stereo = STEREO;
r->sync = SYNC_T;
r->misc = MISC;
}
|
