The only remaining X-functions used in server are XNF*, the rest is converted to plain alloc/calloc/realloc/free/strdup. X* functions are still exported from server and x* macros are still defined in header file, so both ABI and API are not affected by this change. Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
686 lines
18 KiB
C
686 lines
18 KiB
C
/*
|
|
* Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE>
|
|
* Copyright 2007 Red Hat, Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*
|
|
* interpret_edid.c: interpret a primary EDID block
|
|
*/
|
|
|
|
#ifdef HAVE_XORG_CONFIG_H
|
|
#include <xorg-config.h>
|
|
#endif
|
|
|
|
#include "misc.h"
|
|
#include "xf86.h"
|
|
#include "xf86_OSproc.h"
|
|
#define _PARSE_EDID_
|
|
#include "xf86DDC.h"
|
|
#include <string.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 *,
|
|
struct edid_version *);
|
|
static void get_established_timing_section(Uchar*, struct established_timings *);
|
|
static void get_std_timing_section(Uchar*, struct std_timings *,
|
|
struct edid_version *);
|
|
static void fetch_detailed_block(Uchar *c, struct edid_version *ver,
|
|
struct detailed_monitor_section *det_mon);
|
|
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 *,
|
|
struct edid_version *);
|
|
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 *);
|
|
static Bool validate_version(int scrnIndex, struct edid_version *);
|
|
|
|
static void
|
|
find_ranges_section(struct detailed_monitor_section *det, void *ranges)
|
|
{
|
|
if (det->type == DS_RANGES && det->section.ranges.max_clock)
|
|
*(struct monitor_ranges **)ranges = &det->section.ranges;
|
|
}
|
|
|
|
static void
|
|
find_max_detailed_clock(struct detailed_monitor_section *det, void *ret)
|
|
{
|
|
if (det->type == DT) {
|
|
*(int *)ret = max(*((int *)ret),
|
|
det->section.d_timings.clock);
|
|
}
|
|
}
|
|
|
|
static void
|
|
handle_edid_quirks(xf86MonPtr m)
|
|
{
|
|
struct monitor_ranges *ranges = NULL;
|
|
|
|
/*
|
|
* max_clock is only encoded in EDID in tens of MHz, so occasionally we
|
|
* find a monitor claiming a max of 160 with a mode requiring 162, or
|
|
* similar. Strictly we should refuse to round up too far, but let's
|
|
* see how well this works.
|
|
*/
|
|
|
|
/* Try to find Monitor Range and max clock, then re-set range value*/
|
|
xf86ForEachDetailedBlock(m, find_ranges_section, &ranges);
|
|
if (ranges && ranges->max_clock) {
|
|
int clock = 0;
|
|
xf86ForEachDetailedBlock(m, find_max_detailed_clock, &clock);
|
|
if (clock && (ranges->max_clock * 1e6 < clock)) {
|
|
xf86Msg(X_WARNING, "EDID timing clock %.2f exceeds claimed max "
|
|
"%dMHz, fixing\n", clock / 1.0e6, ranges->max_clock);
|
|
ranges->max_clock = (clock+999999)/1e6;
|
|
}
|
|
}
|
|
}
|
|
|
|
struct det_hv_parameter {
|
|
int real_hsize;
|
|
int real_vsize;
|
|
float target_aspect;
|
|
};
|
|
|
|
static void handle_detailed_hvsize(struct detailed_monitor_section *det_mon,
|
|
void *data)
|
|
{
|
|
struct det_hv_parameter *p = (struct det_hv_parameter *)data;
|
|
float timing_aspect;
|
|
|
|
if (det_mon->type == DT) {
|
|
struct detailed_timings *timing;
|
|
timing = &det_mon->section.d_timings;
|
|
|
|
if (!timing->v_size)
|
|
return;
|
|
|
|
timing_aspect = (float)timing->h_size / timing->v_size;
|
|
if (fabs(1 - (timing_aspect / p->target_aspect)) < 0.05) {
|
|
p->real_hsize = max(p->real_hsize, timing->h_size);
|
|
p->real_vsize = max(p->real_vsize, timing->v_size);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void encode_aspect_ratio(xf86MonPtr m)
|
|
{
|
|
/*
|
|
* some monitors encode the aspect ratio instead of the physical size.
|
|
* try to find the largest detailed timing that matches that aspect
|
|
* ratio and use that to fill in the feature section.
|
|
*/
|
|
if ((m->features.hsize == 16 && m->features.vsize == 9) ||
|
|
(m->features.hsize == 16 && m->features.vsize == 10) ||
|
|
(m->features.hsize == 4 && m->features.vsize == 3) ||
|
|
(m->features.hsize == 5 && m->features.vsize == 4)) {
|
|
|
|
struct det_hv_parameter p;
|
|
p.real_hsize = 0;
|
|
p.real_vsize = 0;
|
|
p.target_aspect = (float)m->features.hsize /m->features.vsize;
|
|
|
|
xf86ForEachDetailedBlock(m, handle_detailed_hvsize, &p);
|
|
|
|
if (!p.real_hsize || !p.real_vsize) {
|
|
m->features.hsize = m->features.vsize = 0;
|
|
} else if ((m->features.hsize * 10 == p.real_hsize) &&
|
|
(m->features.vsize * 10 == p.real_vsize)) {
|
|
/* exact match is just unlikely, should do a better check though */
|
|
m->features.hsize = m->features.vsize = 0;
|
|
} else {
|
|
/* convert mm to cm */
|
|
m->features.hsize = (p.real_hsize + 5) / 10;
|
|
m->features.vsize = (p.real_vsize + 5) / 10;
|
|
}
|
|
|
|
xf86Msg(X_INFO, "Quirked EDID physical size to %dx%d cm\n",
|
|
m->features.hsize, m->features.vsize);
|
|
}
|
|
}
|
|
|
|
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);
|
|
if (!validate_version(scrnIndex, &m->ver)) goto error;
|
|
get_display_section(SECTION(DISPLAY_SECTION,block),&m->features,
|
|
&m->ver);
|
|
get_established_timing_section(SECTION(ESTABLISHED_TIMING_SECTION,block),
|
|
&m->timings1);
|
|
get_std_timing_section(SECTION(STD_TIMING_SECTION,block),m->timings2,
|
|
&m->ver);
|
|
get_dt_md_section(SECTION(DET_TIMING_SECTION,block),&m->ver, m->det_mon);
|
|
m->no_sections = (int)*(char *)SECTION(NO_EDID,block);
|
|
|
|
handle_edid_quirks(m);
|
|
encode_aspect_ratio(m);
|
|
|
|
return (m);
|
|
|
|
error:
|
|
free(m);
|
|
return NULL;
|
|
}
|
|
|
|
static int get_cea_detail_timing(Uchar *blk, xf86MonPtr mon,
|
|
struct detailed_monitor_section *det_mon)
|
|
{
|
|
int dt_num;
|
|
int dt_offset = ((struct cea_ext_body *)blk)->dt_offset;
|
|
|
|
dt_num = 0;
|
|
|
|
if (dt_offset < CEA_EXT_MIN_DATA_OFFSET)
|
|
return dt_num;
|
|
|
|
for (; dt_offset < (CEA_EXT_MAX_DATA_OFFSET - DET_TIMING_INFO_LEN) &&
|
|
dt_num < CEA_EXT_DET_TIMING_NUM;
|
|
_NEXT_DT_MD_SECTION(dt_offset)) {
|
|
|
|
fetch_detailed_block(blk + dt_offset, &mon->ver, det_mon + dt_num);
|
|
dt_num = dt_num + 1 ;
|
|
}
|
|
|
|
return dt_num;
|
|
}
|
|
|
|
static void handle_cea_detail_block(Uchar *ext, xf86MonPtr mon,
|
|
handle_detailed_fn fn,
|
|
void *data)
|
|
{
|
|
int i;
|
|
struct detailed_monitor_section det_mon[CEA_EXT_DET_TIMING_NUM];
|
|
int det_mon_num;
|
|
|
|
det_mon_num = get_cea_detail_timing(ext, mon, det_mon);
|
|
|
|
for (i = 0; i < det_mon_num; i++)
|
|
fn(det_mon + i, data);
|
|
}
|
|
|
|
void xf86ForEachDetailedBlock(xf86MonPtr mon,
|
|
handle_detailed_fn fn,
|
|
void *data)
|
|
{
|
|
int i;
|
|
Uchar *ext;
|
|
|
|
if (mon == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < DET_TIMINGS; i++)
|
|
fn(mon->det_mon + i, data);
|
|
|
|
for (i = 0; i < mon->no_sections; i++) {
|
|
ext = mon->rawData + EDID1_LEN * (i + 1);
|
|
switch (ext[EXT_TAG]){
|
|
case CEA_EXT:
|
|
handle_cea_detail_block(ext, mon, fn, data);
|
|
break;
|
|
case VTB_EXT:
|
|
case DI_EXT:
|
|
case LS_EXT:
|
|
case MI_EXT:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static struct cea_data_block *
|
|
extract_cea_data_block(Uchar *ext, int data_type)
|
|
{
|
|
struct cea_ext_body *cea;
|
|
struct cea_data_block *data_collection;
|
|
struct cea_data_block *data_end;
|
|
|
|
cea = (struct cea_ext_body *)ext;
|
|
|
|
if (cea->dt_offset <= CEA_EXT_MIN_DATA_OFFSET)
|
|
return NULL;
|
|
|
|
data_collection = &cea->data_collection;
|
|
data_end = (struct cea_data_block *)(cea->dt_offset + ext);
|
|
|
|
for ( ;data_collection < data_end;) {
|
|
|
|
if (data_type == data_collection->tag) {
|
|
return data_collection;
|
|
}
|
|
data_collection = (void *)((unsigned char *)data_collection +
|
|
data_collection->len + 1);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void handle_cea_video_block(Uchar *ext, handle_video_fn fn, void *data)
|
|
{
|
|
struct cea_video_block *video;
|
|
struct cea_video_block *video_end;
|
|
struct cea_data_block *data_collection;
|
|
|
|
data_collection = extract_cea_data_block(ext, CEA_VIDEO_BLK);
|
|
if (data_collection == NULL)
|
|
return;
|
|
|
|
video = &data_collection->u.video;
|
|
video_end = (struct cea_video_block *)
|
|
((Uchar *)video + data_collection->len);
|
|
|
|
for (; video < video_end; video = video + 1) {
|
|
fn(video, data);
|
|
}
|
|
}
|
|
|
|
void xf86ForEachVideoBlock(xf86MonPtr mon,
|
|
handle_video_fn fn,
|
|
void *data)
|
|
{
|
|
int i;
|
|
Uchar *ext;
|
|
|
|
if (mon == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < mon->no_sections; i++) {
|
|
ext = mon->rawData + EDID1_LEN * (i + 1);
|
|
switch (ext[EXT_TAG]) {
|
|
case CEA_EXT:
|
|
handle_cea_video_block(ext, fn, data);
|
|
break;
|
|
case VTB_EXT:
|
|
case DI_EXT:
|
|
case LS_EXT:
|
|
case MI_EXT:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
xf86MonPtr
|
|
xf86InterpretEEDID(int scrnIndex, Uchar *block)
|
|
{
|
|
xf86MonPtr m;
|
|
|
|
m = xf86InterpretEDID(scrnIndex, block);
|
|
if (!m)
|
|
return NULL;
|
|
|
|
/* extension parse */
|
|
|
|
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,
|
|
struct edid_version *v)
|
|
{
|
|
r->input_type = INPUT_TYPE;
|
|
if (!DIGITAL(r->input_type)) {
|
|
r->input_voltage = INPUT_VOLTAGE;
|
|
r->input_setup = SETUP;
|
|
r->input_sync = SYNC;
|
|
} else if (v->revision == 2 || v->revision == 3) {
|
|
r->input_dfp = DFP;
|
|
} else if (v->revision >= 4) {
|
|
r->input_bpc = BPC;
|
|
r->input_interface = DIGITAL_INTERFACE;
|
|
}
|
|
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_cvt_timing_section(Uchar *c, struct cvt_timings *r)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
if (c[0] && c[1] && c[2]) {
|
|
r[i].height = (c[0] + ((c[1] & 0xF0) << 8) + 1) * 2;
|
|
switch (c[1] & 0xc0) {
|
|
case 0x00: r[i].width = r[i].height * 4 / 3; break;
|
|
case 0x40: r[i].width = r[i].height * 16 / 9; break;
|
|
case 0x80: r[i].width = r[i].height * 16 / 10; break;
|
|
case 0xc0: r[i].width = r[i].height * 15 / 9; break;
|
|
}
|
|
switch (c[2] & 0x60) {
|
|
case 0x00: r[i].rate = 50; break;
|
|
case 0x20: r[i].rate = 60; break;
|
|
case 0x40: r[i].rate = 75; break;
|
|
case 0x60: r[i].rate = 85; break;
|
|
}
|
|
r[i].rates = c[2] & 0x1f;
|
|
} else {
|
|
return;
|
|
}
|
|
c += 3;
|
|
}
|
|
}
|
|
|
|
static void
|
|
get_std_timing_section(Uchar *c, struct std_timings *r,
|
|
struct edid_version *v)
|
|
{
|
|
int i;
|
|
|
|
for (i=0;i<STD_TIMINGS;i++){
|
|
if (VALID_TIMING) {
|
|
r[i].hsize = HSIZE1;
|
|
VSIZE1(r[i].vsize);
|
|
r[i].refresh = REFRESH_R;
|
|
r[i].id = STD_TIMING_ID;
|
|
} else {
|
|
r[i].hsize = r[i].vsize = r[i].refresh = r[i].id = 0;
|
|
}
|
|
NEXT_STD_TIMING;
|
|
}
|
|
}
|
|
|
|
static const unsigned char empty_block[18];
|
|
|
|
static void
|
|
fetch_detailed_block(Uchar *c, struct edid_version *ver,
|
|
struct detailed_monitor_section *det_mon)
|
|
{
|
|
if (ver->version == 1 && ver->revision >= 1 && IS_MONITOR_DESC) {
|
|
switch (MONITOR_DESC_TYPE) {
|
|
case SERIAL_NUMBER:
|
|
det_mon->type = DS_SERIAL;
|
|
copy_string(c,det_mon->section.serial);
|
|
break;
|
|
case ASCII_STR:
|
|
det_mon->type = DS_ASCII_STR;
|
|
copy_string(c,det_mon->section.ascii_data);
|
|
break;
|
|
case MONITOR_RANGES:
|
|
det_mon->type = DS_RANGES;
|
|
get_monitor_ranges(c,&det_mon->section.ranges);
|
|
break;
|
|
case MONITOR_NAME:
|
|
det_mon->type = DS_NAME;
|
|
copy_string(c,det_mon->section.name);
|
|
break;
|
|
case ADD_COLOR_POINT:
|
|
det_mon->type = DS_WHITE_P;
|
|
get_whitepoint_section(c,det_mon->section.wp);
|
|
break;
|
|
case ADD_STD_TIMINGS:
|
|
det_mon->type = DS_STD_TIMINGS;
|
|
get_dst_timing_section(c,det_mon->section.std_t, ver);
|
|
break;
|
|
case COLOR_MANAGEMENT_DATA:
|
|
det_mon->type = DS_CMD;
|
|
break;
|
|
case CVT_3BYTE_DATA:
|
|
det_mon->type = DS_CVT;
|
|
get_cvt_timing_section(c, det_mon->section.cvt);
|
|
break;
|
|
case ADD_EST_TIMINGS:
|
|
det_mon->type = DS_EST_III;
|
|
memcpy(det_mon->section.est_iii, c + 6, 6);
|
|
break;
|
|
case ADD_DUMMY:
|
|
det_mon->type = DS_DUMMY;
|
|
break;
|
|
default:
|
|
det_mon->type = DS_UNKOWN;
|
|
break;
|
|
}
|
|
if (c[3] <= 0x0F && memcmp(c, empty_block, sizeof(empty_block))) {
|
|
det_mon->type = DS_VENDOR + c[3];
|
|
}
|
|
} else {
|
|
det_mon->type = DT;
|
|
get_detailed_timing_section(c, &det_mon->section.d_timings);
|
|
}
|
|
}
|
|
|
|
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++) {
|
|
fetch_detailed_block(c, ver, det_mon + i);
|
|
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,
|
|
struct edid_version *v)
|
|
{
|
|
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 = 0;
|
|
if(MAX_CLOCK != 0xff) /* is specified? */
|
|
r->max_clock = MAX_CLOCK * 10;
|
|
if (HAVE_2ND_GTF) {
|
|
r->gtf_2nd_f = F_2ND_GTF;
|
|
r->gtf_2nd_c = C_2ND_GTF;
|
|
r->gtf_2nd_m = M_2ND_GTF;
|
|
r->gtf_2nd_k = K_2ND_GTF;
|
|
r->gtf_2nd_j = J_2ND_GTF;
|
|
} else {
|
|
r->gtf_2nd_f = 0;
|
|
}
|
|
if (HAVE_CVT) {
|
|
r->max_clock_khz = MAX_CLOCK_KHZ;
|
|
r->max_clock = r->max_clock_khz / 1000;
|
|
r->maxwidth = MAXWIDTH;
|
|
r->supported_aspect = SUPPORTED_ASPECT;
|
|
r->preferred_aspect = PREFERRED_ASPECT;
|
|
r->supported_blanking = SUPPORTED_BLANKING;
|
|
r->supported_scaling = SUPPORTED_SCALING;
|
|
r->preferred_refresh = PREFERRED_REFRESH;
|
|
} else {
|
|
r->max_clock_khz = 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
get_whitepoint_section(Uchar *c, struct whitePoints *wp)
|
|
{
|
|
wp[0].white_x = WHITEX1;
|
|
wp[0].white_y = WHITEY1;
|
|
wp[1].white_x = WHITEX2;
|
|
wp[1].white_y = WHITEY2;
|
|
wp[0].index = WHITE_INDEX1;
|
|
wp[1].index = WHITE_INDEX2;
|
|
wp[0].white_gamma = WHITE_GAMMA1;
|
|
wp[1].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->stereo_1 = STEREO1;
|
|
r->sync = SYNC_T;
|
|
r->misc = MISC;
|
|
}
|
|
|
|
#define MAX_EDID_MINOR 4
|
|
|
|
static Bool
|
|
validate_version(int scrnIndex, struct edid_version *r)
|
|
{
|
|
if (r->version != 1) {
|
|
xf86DrvMsg(scrnIndex, X_ERROR, "Unknown EDID version %d\n",
|
|
r->version);
|
|
return FALSE;
|
|
}
|
|
|
|
if (r->revision > MAX_EDID_MINOR)
|
|
xf86DrvMsg(scrnIndex, X_WARNING,
|
|
"Assuming version 1.%d is compatible with 1.%d\n",
|
|
r->revision, MAX_EDID_MINOR);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Returns true if HDMI, false if definitely not or unknown.
|
|
*/
|
|
Bool
|
|
xf86MonitorIsHDMI(xf86MonPtr mon)
|
|
{
|
|
int i = 0, version, offset;
|
|
char *edid = NULL;
|
|
|
|
if (!mon)
|
|
return FALSE;
|
|
|
|
if (!(mon->flags & EDID_COMPLETE_RAWDATA))
|
|
return FALSE;
|
|
|
|
if (!mon->no_sections)
|
|
return FALSE;
|
|
|
|
edid = (char *)mon->rawData;
|
|
if (!edid)
|
|
return FALSE;
|
|
|
|
/* find the CEA extension block */
|
|
for (i = 1; i <= mon->no_sections; i++)
|
|
if (edid[i * 128] == 0x02)
|
|
break;
|
|
if (i == mon->no_sections + 1)
|
|
return FALSE;
|
|
edid += (i * 128);
|
|
|
|
version = edid[1];
|
|
offset = edid[2];
|
|
if (version < 3 || offset < 4)
|
|
return FALSE;
|
|
|
|
/* walk the cea data blocks */
|
|
for (i = 4; i < offset; i += (edid[i] & 0x1f) + 1) {
|
|
char *x = edid + i;
|
|
|
|
/* find a vendor specific block */
|
|
if ((x[0] & 0xe0) >> 5 == 0x03) {
|
|
int oui = (x[3] << 16) + (x[2] << 8) + x[1];
|
|
|
|
/* find the HDMI vendor OUI */
|
|
if (oui == 0x000c03)
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/* guess it's not HDMI after all */
|
|
return FALSE;
|
|
}
|