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Regard whitespace Rev 1178 → Rev 1179

/drivers/video/drm/drm_edid.c
30,15 → 30,11
#include <types.h>
#include <list.h>
 
#include <linux/idr.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include "drmP.h"
#include "drm_edid.h"
 
 
 
 
/*
* TODO:
* - support EDID 1.4 (incl. CE blocks)
67,7 → 63,13
#define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5)
/* use +hsync +vsync for detailed mode */
#define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6)
/* define the number of Extension EDID block */
#define MAX_EDID_EXT_NUM 4
 
#define LEVEL_DMT 0
#define LEVEL_GTF 1
#define LEVEL_CVT 2
 
static struct edid_quirk {
char *vendor;
int product_id;
244,6 → 246,263
preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
}
 
/*
* Add the Autogenerated from the DMT spec.
* This table is copied from xfree86/modes/xf86EdidModes.c.
* But the mode with Reduced blank feature is deleted.
*/
static struct drm_display_mode drm_dmt_modes[] = {
/* 640x350@85Hz */
{ DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
736, 832, 0, 350, 382, 385, 445, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 640x400@85Hz */
{ DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
736, 832, 0, 400, 401, 404, 445, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 720x400@85Hz */
{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
828, 936, 0, 400, 401, 404, 446, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 640x480@60Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
752, 800, 0, 480, 489, 492, 525, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 640x480@72Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
704, 832, 0, 480, 489, 492, 520, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 640x480@75Hz */
{ 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@85Hz */
{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
752, 832, 0, 480, 481, 484, 509, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 800x600@56Hz */
{ 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@60Hz */
{ 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@72Hz */
{ 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@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@85Hz */
{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
896, 1048, 0, 600, 601, 604, 631, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 848x480@60Hz */
{ DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
976, 1088, 0, 480, 486, 494, 517, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1024x768@43Hz, interlace */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
1208, 1264, 0, 768, 768, 772, 817, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
DRM_MODE_FLAG_INTERLACE) },
/* 1024x768@60Hz */
{ 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@70Hz */
{ 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@75Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
1136, 1312, 0, 768, 769, 772, 800, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1024x768@85Hz */
{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
1072, 1376, 0, 768, 769, 772, 808, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1152x864@75Hz */
{ 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) },
/* 1280x768@60Hz */
{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1472, 1664, 0, 768, 771, 778, 798, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x768@75Hz */
{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
1488, 1696, 0, 768, 771, 778, 805, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 1280x768@85Hz */
{ DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
1496, 1712, 0, 768, 771, 778, 809, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x800@60Hz */
{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1480, 1680, 0, 800, 803, 809, 831, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
/* 1280x800@75Hz */
{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
1488, 1696, 0, 800, 803, 809, 838, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x800@85Hz */
{ DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
1496, 1712, 0, 800, 803, 809, 843, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x960@60Hz */
{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1488, 1800, 0, 960, 961, 964, 1000, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x960@85Hz */
{ DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
1504, 1728, 0, 960, 961, 964, 1011, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x1024@60Hz */
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1280x1024@75Hz */
{ 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@85Hz */
{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1360x768@60Hz */
{ DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1536, 1792, 0, 768, 771, 777, 795, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x1050@60Hz */
{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x1050@75Hz */
{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x1050@85Hz */
{ DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x900@60Hz */
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1672, 1904, 0, 900, 903, 909, 934, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x900@75Hz */
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
1688, 1936, 0, 900, 903, 909, 942, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1440x900@85Hz */
{ DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
1696, 1952, 0, 900, 903, 909, 948, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1600x1200@60Hz */
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1600x1200@65Hz */
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1600x1200@70Hz */
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1600x1200@75Hz */
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 2025000, 1600, 1664,
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1600x1200@85Hz */
{ DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1680x1050@60Hz */
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1680x1050@75Hz */
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1680x1050@85Hz */
{ DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1792x1344@60Hz */
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1729x1344@75Hz */
{ DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1853x1392@60Hz */
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1856x1392@75Hz */
{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1920x1200@60Hz */
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1920x1200@75Hz */
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1920x1200@85Hz */
{ DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1920x1440@60Hz */
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 1920x1440@75Hz */
{ DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 2560x1600@60Hz */
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 2560x1600@75HZ */
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
/* 2560x1600@85HZ */
{ DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
};
 
static struct drm_display_mode *drm_find_dmt(struct drm_device *dev,
int hsize, int vsize, int fresh)
{
int i, count;
struct drm_display_mode *ptr, *mode;
 
count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
mode = NULL;
for (i = 0; i < count; i++) {
ptr = &drm_dmt_modes[i];
if (hsize == ptr->hdisplay &&
vsize == ptr->vdisplay &&
fresh == drm_mode_vrefresh(ptr)) {
/* get the expected default mode */
mode = drm_mode_duplicate(dev, ptr);
break;
}
}
return mode;
}
/**
* drm_mode_std - convert standard mode info (width, height, refresh) into mode
* @t: standard timing params
255,16 → 514,22
* generation code.
*/
struct drm_display_mode *drm_mode_std(struct drm_device *dev,
struct std_timing *t)
struct std_timing *t,
int timing_level)
{
struct drm_display_mode *mode;
int hsize = t->hsize * 8 + 248, vsize;
int hsize, vsize;
int vrefresh_rate;
unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
>> EDID_TIMING_ASPECT_SHIFT;
unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
>> EDID_TIMING_VFREQ_SHIFT;
 
mode = drm_mode_create(dev);
if (!mode)
return NULL;
/* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
hsize = t->hsize * 8 + 248;
/* vrefresh_rate = vfreq + 60 */
vrefresh_rate = vfreq + 60;
/* the vdisplay is calculated based on the aspect ratio */
 
if (aspect_ratio == 0)
vsize = (hsize * 10) / 16;
274,9 → 539,30
vsize = (hsize * 4) / 5;
else
vsize = (hsize * 9) / 16;
/* HDTV hack */
if (hsize == 1360 && vsize == 765 && vrefresh_rate == 60) {
mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
mode->hdisplay = 1366;
mode->vsync_start = mode->vsync_start - 1;
mode->vsync_end = mode->vsync_end - 1;
return mode;
}
mode = NULL;
/* check whether it can be found in default mode table */
mode = drm_find_dmt(dev, hsize, vsize, vrefresh_rate);
if (mode)
return mode;
 
drm_mode_set_name(mode);
 
switch (timing_level) {
case LEVEL_DMT:
break;
case LEVEL_GTF:
mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
break;
case LEVEL_CVT:
mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
break;
}
return mode;
}
 
458,6 → 744,19
 
return modes;
}
/**
* stanard_timing_level - get std. timing level(CVT/GTF/DMT)
* @edid: EDID block to scan
*/
static int standard_timing_level(struct edid *edid)
{
if (edid->revision >= 2) {
if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
return LEVEL_CVT;
return LEVEL_GTF;
}
return LEVEL_DMT;
}
 
/**
* add_standard_modes - get std. modes from EDID and add them
470,7 → 769,10
{
struct drm_device *dev = connector->dev;
int i, modes = 0;
int timing_level;
 
timing_level = standard_timing_level(edid);
 
for (i = 0; i < EDID_STD_TIMINGS; i++) {
struct std_timing *t = &edid->standard_timings[i];
struct drm_display_mode *newmode;
479,7 → 781,8
if (t->hsize == 1 && t->vfreq_aspect == 1)
continue;
 
newmode = drm_mode_std(dev, &edid->standard_timings[i]);
newmode = drm_mode_std(dev, &edid->standard_timings[i],
timing_level);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
503,18 → 806,50
{
struct drm_device *dev = connector->dev;
int i, j, modes = 0;
int timing_level;
 
timing_level = standard_timing_level(edid);
 
for (i = 0; i < EDID_DETAILED_TIMINGS; i++) {
struct detailed_timing *timing = &edid->detailed_timings[i];
struct detailed_non_pixel *data = &timing->data.other_data;
struct drm_display_mode *newmode;
 
/* EDID up to and including 1.2 may put monitor info here */
if (edid->version == 1 && edid->revision < 3)
continue;
/* X server check is version 1.1 or higher */
if (edid->version == 1 && edid->revision >= 1 &&
!timing->pixel_clock) {
/* Other timing or info */
switch (data->type) {
case EDID_DETAIL_MONITOR_SERIAL:
break;
case EDID_DETAIL_MONITOR_STRING:
break;
case EDID_DETAIL_MONITOR_RANGE:
/* Get monitor range data */
break;
case EDID_DETAIL_MONITOR_NAME:
break;
case EDID_DETAIL_MONITOR_CPDATA:
break;
case EDID_DETAIL_STD_MODES:
/* Five modes per detailed section */
for (j = 0; j < 5; i++) {
struct std_timing *std;
struct drm_display_mode *newmode;
 
/* Detailed mode timing */
if (timing->pixel_clock) {
std = &data->data.timings[j];
newmode = drm_mode_std(dev, std,
timing_level);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
}
}
break;
default:
break;
}
} else {
newmode = drm_mode_detailed(dev, edid, timing, quirks);
if (!newmode)
continue;
525,7 → 860,91
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)
{
struct drm_device *dev = connector->dev;
int i, j, modes = 0;
char *edid_ext = NULL;
struct detailed_timing *timing;
struct detailed_non_pixel *data;
struct drm_display_mode *newmode;
int edid_ext_num;
int start_offset, end_offset;
int timing_level;
 
if (edid->version == 1 && edid->revision < 3) {
/* If the EDID version is less than 1.3, there is no
* extension EDID.
*/
return 0;
}
if (!edid->extensions) {
/* if there is no extension EDID, it is unnecessary to
* parse the E-EDID to get detailed info
*/
return 0;
}
 
/* Chose real EDID extension number */
edid_ext_num = edid->extensions > MAX_EDID_EXT_NUM ?
MAX_EDID_EXT_NUM : edid->extensions;
 
/* Find CEA extension */
for (i = 0; i < edid_ext_num; i++) {
edid_ext = (char *)edid + EDID_LENGTH * (i + 1);
/* This block is CEA extension */
if (edid_ext[0] == 0x02)
break;
}
 
if (i == edid_ext_num) {
/* if there is no additional timing EDID block, return */
return 0;
}
 
/* 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;
}
 
timing_level = standard_timing_level(edid);
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);
data = &timing->data.other_data;
/* Detailed mode timing */
if (timing->pixel_clock) {
newmode = drm_mode_detailed(dev, edid, timing, quirks);
if (!newmode)
continue;
 
drm_mode_probed_add(connector, newmode);
 
modes++;
continue;
}
 
/* Other timing or info */
548,7 → 967,7
struct drm_display_mode *newmode;
 
std = &data->data.timings[j];
newmode = drm_mode_std(dev, std);
newmode = drm_mode_std(dev, std, timing_level);
if (newmode) {
drm_mode_probed_add(connector, newmode);
modes++;
608,8 → 1027,6
 
ret = drm_do_probe_ddc_edid(adapter, buf, len);
if (ret != 0) {
// dev_info(&connector->dev->pdev->dev, "%s: no EDID data\n",
// drm_get_connector_name(connector));
goto end;
}
if (!edid_is_valid((struct edid *)buf)) {
621,7 → 1038,6
return ret;
}
 
#define MAX_EDID_EXT_NUM 4
/**
* drm_get_edid - get EDID data, if available
* @connector: connector we're probing
774,6 → 1190,7
num_modes += add_established_modes(connector, edid);
num_modes += add_standard_modes(connector, edid);
num_modes += add_detailed_info(connector, edid, quirks);
num_modes += add_detailed_info_eedid(connector, edid, quirks);
 
if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
edid_fixup_preferred(connector, quirks);
799,3 → 1216,49
return num_modes;
}
EXPORT_SYMBOL(drm_add_edid_modes);
 
/**
* drm_add_modes_noedid - add modes for the connectors without EDID
* @connector: connector we're probing
* @hdisplay: the horizontal display limit
* @vdisplay: the vertical display limit
*
* Add the specified modes to the connector's mode list. Only when the
* hdisplay/vdisplay is not beyond the given limit, it will be added.
*
* Return number of modes added or 0 if we couldn't find any.
*/
int drm_add_modes_noedid(struct drm_connector *connector,
int hdisplay, int vdisplay)
{
int i, count, num_modes = 0;
struct drm_display_mode *mode, *ptr;
struct drm_device *dev = connector->dev;
 
count = sizeof(drm_dmt_modes) / sizeof(struct drm_display_mode);
if (hdisplay < 0)
hdisplay = 0;
if (vdisplay < 0)
vdisplay = 0;
 
for (i = 0; i < count; i++) {
ptr = &drm_dmt_modes[i];
if (hdisplay && vdisplay) {
/*
* Only when two are valid, they will be used to check
* whether the mode should be added to the mode list of
* the connector.
*/
if (ptr->hdisplay > hdisplay ||
ptr->vdisplay > vdisplay)
continue;
}
mode = drm_mode_duplicate(dev, ptr);
if (mode) {
drm_mode_probed_add(connector, mode);
num_modes++;
}
}
return num_modes;
}
EXPORT_SYMBOL(drm_add_modes_noedid);