Skip to content

L
linux
Commit 13931579 authored by Adam Jackson's avatar Adam Jackson Committed by Dave Airlie
Browse files
Options

drm/edid: Rewrite mode parse to use the generic detailed block walk 

This brings us in line with the EDID spec recommendation for mode
priority sorting.  We still don't extract all the modes we could from
VTB, but VTB is so rare in the wild that I'm not really concerned.
Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent cbba98f8
Hide whitespace changes
Inline Side-by-side
Showing with 273 additions and 253 deletions
drivers/gpu/drm/drm_edid.c
View file @ 13931579
......@@ -34,6 +34,10 @@
#include "drmP.h"
#include "drm_edid.h"
#define version_greater(edid, maj, min) \
(((edid)->version > (maj)) || \
((edid)->version == (maj) && (edid)->revision > (min)))
#define EDID_EST_TIMINGS 16
#define EDID_STD_TIMINGS 8
#define EDID_DETAILED_TIMINGS 4
......@@ -62,6 +66,13 @@
/* use +hsync +vsync for detailed mode */
#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
struct detailed_mode_closure {
struct drm_connector *connector;
struct edid *edid;
bool preferred;
u32 quirks;
int modes;
};
#define LEVEL_DMT 0
#define LEVEL_GTF 1
......@@ -1101,117 +1112,6 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
return mode;
}
/*
* Detailed mode info for the EDID "established modes" data to use.
*/
static struct drm_display_mode edid_est_modes[] = {
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
968, 1056, 0, 600, 601, 605, 628, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
896, 1024, 0, 600, 601, 603, 625, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
720, 840, 0, 480, 481, 484, 500, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
704, 832, 0, 480, 489, 491, 520, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
768, 864, 0, 480, 483, 486, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
752, 800, 0, 480, 490, 492, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
846, 900, 0, 400, 421, 423, 449, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
846, 900, 0, 400, 412, 414, 449, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
1136, 1312, 0, 768, 769, 772, 800, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
1184, 1328, 0, 768, 771, 777, 806, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1184, 1344, 0, 768, 771, 777, 806, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
1208, 1264, 0, 768, 768, 776, 817, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
{ DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
928, 1152, 0, 624, 625, 628, 667, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
896, 1056, 0, 600, 601, 604, 625, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
976, 1040, 0, 600, 637, 643, 666, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1344, 1600, 0, 864, 865, 868, 900, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
};
/**
* add_established_modes - get est. modes from EDID and add them
* @edid: EDID block to scan
*
* Each EDID block contains a bitmap of the supported "established modes" list
* (defined above). Tease them out and add them to the global modes list.
*/
static int add_established_modes(struct drm_connector *connector, struct edid *edid)
{
struct drm_device *dev = connector->dev;
unsigned long est_bits = edid->established_timings.t1 |
(edid->established_timings.t2 << 8) |
((edid->established_timings.mfg_rsvd & 0x80) << 9);
int i, modes = 0;
for (i = 0; i <= EDID_EST_TIMINGS; i++)
if (est_bits & (1<<i)) {
struct drm_display_mode *newmode;
newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
}
}
return modes;
}
/**
* add_standard_modes - get std. modes from EDID and add them
* @edid: EDID block to scan
*
* Standard modes can be calculated using the CVT standard. Grab them from
* @edid, calculate them, and add them to the list.
*/
static int add_standard_modes(struct drm_connector *connector, struct edid *edid)
{
int i, modes = 0;
for (i = 0; i < EDID_STD_TIMINGS; i++) {
struct drm_display_mode *newmode;
newmode = drm_mode_std(connector, edid,
&edid->standard_timings[i],
edid->revision);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
}
}
return modes;
}
static bool
mode_is_rb(struct drm_display_mode *mode)
{
......@@ -1321,55 +1221,87 @@ drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
return modes;
}
static int drm_cvt_modes(struct drm_connector *connector,
struct detailed_timing *timing)
static void
do_inferred_modes(struct detailed_timing *timing, void *c)
{
int i, j, modes = 0;
struct drm_display_mode *newmode;
struct drm_device *dev = connector->dev;
struct cvt_timing *cvt;
const int rates[] = { 60, 85, 75, 60, 50 };
const u8 empty[3] = { 0, 0, 0 };
for (i = 0; i < 4; i++) {
int uninitialized_var(width), height;
cvt = &(timing->data.other_data.data.cvt[i]);
struct detailed_mode_closure *closure = c;
struct detailed_non_pixel *data = &timing->data.other_data;
int gtf = (closure->edid->features & DRM_EDID_FEATURE_DEFAULT_GTF);
if (!memcmp(cvt->code, empty, 3))
continue;
if (gtf && data->type == EDID_DETAIL_MONITOR_RANGE)
closure->modes += drm_gtf_modes_for_range(closure->connector,
closure->edid,
timing);
}
height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
switch (cvt->code[1] & 0x0c) {
case 0x00:
width = height * 4 / 3;
break;
case 0x04:
width = height * 16 / 9;
break;
case 0x08:
width = height * 16 / 10;
break;
case 0x0c:
width = height * 15 / 9;
break;
}
static int
add_inferred_modes(struct drm_connector *connector, struct edid *edid)
{
struct detailed_mode_closure closure = {
connector, edid, 0, 0, 0
};
for (j = 1; j < 5; j++) {
if (cvt->code[2] & (1 << j)) {
newmode = drm_cvt_mode(dev, width, height,
rates[j], j == 0,
false, false);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
}
}
}
}
if (version_greater(edid, 1, 0))
drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
&closure);
return modes;
return closure.modes;
}
static struct drm_display_mode edid_est_modes[] = {
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
968, 1056, 0, 600, 601, 605, 628, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
896, 1024, 0, 600, 601, 603, 625, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
720, 840, 0, 480, 481, 484, 500, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
704, 832, 0, 480, 489, 491, 520, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
768, 864, 0, 480, 483, 486, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656,
752, 800, 0, 480, 490, 492, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
846, 900, 0, 400, 421, 423, 449, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
846, 900, 0, 400, 412, 414, 449, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78800, 1024, 1040,
1136, 1312, 0, 768, 769, 772, 800, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
1184, 1328, 0, 768, 771, 777, 806, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1184, 1344, 0, 768, 771, 777, 806, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
1208, 1264, 0, 768, 768, 776, 817, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
{ DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
928, 1152, 0, 624, 625, 628, 667, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
896, 1056, 0, 600, 601, 604, 625, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
976, 1040, 0, 600, 637, 643, 666, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
{ DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1344, 1600, 0, 864, 865, 868, 900, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
};
static const struct {
short w;
short h;
......@@ -1458,37 +1390,63 @@ drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
return modes;
}
static int add_detailed_modes(struct drm_connector *connector,
struct detailed_timing *timing,
struct edid *edid, u32 quirks, int preferred)
static void
do_established_modes(struct detailed_timing *timing, void *c)
{
int i, modes = 0;
struct detailed_mode_closure *closure = c;
struct detailed_non_pixel *data = &timing->data.other_data;
int gtf = (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF);
struct drm_display_mode *newmode;
struct drm_device *dev = connector->dev;
if (timing->pixel_clock) {
newmode = drm_mode_detailed(dev, edid, timing, quirks);
if (!newmode)
return 0;
if (data->type == EDID_DETAIL_EST_TIMINGS)
closure->modes += drm_est3_modes(closure->connector, timing);
}
if (preferred)
newmode->type |= DRM_MODE_TYPE_PREFERRED;
/**
* add_established_modes - get est. modes from EDID and add them
* @edid: EDID block to scan
*
* Each EDID block contains a bitmap of the supported "established modes" list
* (defined above). Tease them out and add them to the global modes list.
*/
static int
add_established_modes(struct drm_connector *connector, struct edid *edid)
{
struct drm_device *dev = connector->dev;
unsigned long est_bits = edid->established_timings.t1 |
(edid->established_timings.t2 << 8) |
((edid->established_timings.mfg_rsvd & 0x80) << 9);
int i, modes = 0;
struct detailed_mode_closure closure = {
connector, edid, 0, 0, 0
};
drm_mode_probed_add(connector, newmode);
return 1;
for (i = 0; i <= EDID_EST_TIMINGS; i++) {
if (est_bits & (1<<i)) {
struct drm_display_mode *newmode;
newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
}
}
}
/* other timing types */
switch (data->type) {
case EDID_DETAIL_MONITOR_RANGE:
if (gtf)
modes += drm_gtf_modes_for_range(connector, edid,
timing);
break;
case EDID_DETAIL_STD_MODES:
/* Six modes per detailed section */
if (version_greater(edid, 1, 0))
drm_for_each_detailed_block((u8 *)edid,
do_established_modes, &closure);
return modes + closure.modes;
}
static void
do_standard_modes(struct detailed_timing *timing, void *c)
{
struct detailed_mode_closure *closure = c;
struct detailed_non_pixel *data = &timing->data.other_data;
struct drm_connector *connector = closure->connector;
struct edid *edid = closure->edid;
if (data->type == EDID_DETAIL_STD_MODES) {
int i;
for (i = 0; i < 6; i++) {
struct std_timing *std;
struct drm_display_mode *newmode;
......@@ -1498,108 +1456,169 @@ static int add_detailed_modes(struct drm_connector *connector,
edid->revision);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
closure->modes++;
}
}
break;
case EDID_DETAIL_CVT_3BYTE:
modes += drm_cvt_modes(connector, timing);
break;
case EDID_DETAIL_EST_TIMINGS:
modes += drm_est3_modes(connector, timing);
break;
default:
break;
}
return modes;
}
/**
* add_detailed_info - get detailed mode info from EDID data
* @connector: attached connector
* add_standard_modes - get std. modes from EDID and add them
* @edid: EDID block to scan
* @quirks: quirks to apply
*
* Some of the detailed timing sections may contain mode information. Grab
* it and add it to the list.
* Standard modes can be calculated using the appropriate standard (DMT,
* GTF or CVT. Grab them from @edid and add them to the list.
*/
static int add_detailed_info(struct drm_connector *connector,
struct edid *edid, u32 quirks)
static int
add_standard_modes(struct drm_connector *connector, struct edid *edid)
{
int i, modes = 0;
struct detailed_mode_closure closure = {
connector, edid, 0, 0, 0
};
for (i = 0; i < EDID_STD_TIMINGS; i++) {
struct drm_display_mode *newmode;
newmode = drm_mode_std(connector, edid,
&edid->standard_timings[i],
edid->revision);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
}
}
if (version_greater(edid, 1, 0))
drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
&closure);
/* XXX should also look for standard codes in VTB blocks */
return modes + closure.modes;
}
for (i = 0; i < EDID_DETAILED_TIMINGS; i++) {
struct detailed_timing *timing = &edid->detailed_timings[i];
int preferred = (i == 0);
static int drm_cvt_modes(struct drm_connector *connector,
struct detailed_timing *timing)
{
int i, j, modes = 0;
struct drm_display_mode *newmode;
struct drm_device *dev = connector->dev;
struct cvt_timing *cvt;
const int rates[] = { 60, 85, 75, 60, 50 };
const u8 empty[3] = { 0, 0, 0 };
if (preferred && edid->version == 1 && edid->revision < 4)
preferred = (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
for (i = 0; i < 4; i++) {
int uninitialized_var(width), height;
cvt = &(timing->data.other_data.data.cvt[i]);
/* In 1.0, only timings are allowed */
if (!timing->pixel_clock && edid->version == 1 &&
edid->revision == 0)
if (!memcmp(cvt->code, empty, 3))
continue;
modes += add_detailed_modes(connector, timing, edid, quirks,
preferred);
height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
switch (cvt->code[1] & 0x0c) {
case 0x00:
width = height * 4 / 3;
break;
case 0x04:
width = height * 16 / 9;
break;
case 0x08:
width = height * 16 / 10;
break;
case 0x0c:
width = height * 15 / 9;
break;
}
for (j = 1; j < 5; j++) {
if (cvt->code[2] & (1 << j)) {
newmode = drm_cvt_mode(dev, width, height,
rates[j], j == 0,
false, false);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
}
}
}
}
return modes;
}
/**
* add_detailed_mode_eedid - get detailed mode info from addtional timing
* EDID block
* @connector: attached connector
* @edid: EDID block to scan(It is only to get addtional timing EDID block)
* @quirks: quirks to apply
*
* Some of the detailed timing sections may contain mode information. Grab
* it and add it to the list.
*/
static int add_detailed_info_eedid(struct drm_connector *connector,
struct edid *edid, u32 quirks)
static void
do_cvt_mode(struct detailed_timing *timing, void *c)
{
int i, modes = 0;
char *edid_ext = NULL;
struct detailed_timing *timing;
int start_offset, end_offset;
struct detailed_mode_closure *closure = c;
struct detailed_non_pixel *data = &timing->data.other_data;
if (edid->version == 1 && edid->revision < 3)
return 0;
if (!edid->extensions)
return 0;
if (data->type == EDID_DETAIL_CVT_3BYTE)
closure->modes += drm_cvt_modes(closure->connector, timing);
}
/* Find CEA extension */
for (i = 0; i < edid->extensions; i++) {
edid_ext = (char *)edid + EDID_LENGTH * (i + 1);
if (edid_ext[0] == 0x02)
break;
}
static int
add_cvt_modes(struct drm_connector *connector, struct edid *edid)
{
struct detailed_mode_closure closure = {
connector, edid, 0, 0, 0
};
if (i == edid->extensions)
return 0;
if (version_greater(edid, 1, 2))
drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
/* Get the start offset of detailed timing block */
start_offset = edid_ext[2];
if (start_offset == 0) {
/* If the start_offset is zero, it means that neither detailed
* info nor data block exist. In such case it is also
* unnecessary to parse the detailed timing info.
*/
return 0;
}
/* XXX should also look for CVT codes in VTB blocks */
end_offset = EDID_LENGTH;
end_offset -= sizeof(struct detailed_timing);
for (i = start_offset; i < end_offset;
i += sizeof(struct detailed_timing)) {
timing = (struct detailed_timing *)(edid_ext + i);
modes += add_detailed_modes(connector, timing, edid, quirks, 0);
return closure.modes;
}
static void
do_detailed_mode(struct detailed_timing *timing, void *c)
{
struct detailed_mode_closure *closure = c;
struct drm_display_mode *newmode;
if (timing->pixel_clock) {
newmode = drm_mode_detailed(closure->connector->dev,
closure->edid, timing,
closure->quirks);
if (!newmode)
return;
if (closure->preferred)
newmode->type |= DRM_MODE_TYPE_PREFERRED;
drm_mode_probed_add(closure->connector, newmode);
closure->modes++;
closure->preferred = 0;
}
}
return modes;
/*
* add_detailed_modes - Add modes from detailed timings
* @connector: attached connector
* @edid: EDID block to scan
* @quirks: quirks to apply
*/
static int
add_detailed_modes(struct drm_connector *connector, struct edid *edid,
u32 quirks)
{
struct detailed_mode_closure closure = {
connector,
edid,
1,
quirks,
0
};
if (closure.preferred && !version_greater(edid, 1, 3))
closure.preferred =
(edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
return closure.modes;
}
#define HDMI_IDENTIFIER 0x000C03
......@@ -1695,14 +1714,15 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
* - established timing codes
* - modes inferred from GTF or CVT range information
*
* We don't quite implement this yet, but we're close.
* We get this pretty much right.
*
* XXX order for additional mode types in extension blocks?
*/
num_modes += add_detailed_info(connector, edid, quirks);
num_modes += add_detailed_info_eedid(connector, edid, quirks);
num_modes += add_detailed_modes(connector, edid, quirks);
num_modes += add_cvt_modes(connector, edid);
num_modes += add_standard_modes(connector, edid);
num_modes += add_established_modes(connector, edid);
num_modes += add_inferred_modes(connector, edid);
if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
edid_fixup_preferred(connector, quirks);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7