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path: root/drivers/gpu/drm/drm_edid.c
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Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
-rw-r--r--drivers/gpu/drm/drm_edid.c504
1 files changed, 487 insertions, 17 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 7f2728bbc16c..90d76bacff17 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -60,6 +60,12 @@
#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;
@@ -237,28 +243,291 @@ static void edid_fixup_preferred(struct drm_connector *connector,
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
+ * @timing_level: standard timing level
*
* Take the standard timing params (in this case width, aspect, and refresh)
- * and convert them into a real mode using CVT.
+ * and convert them into a real mode using CVT/GTF/DMT.
*
* Punts for now, but should eventually use the FB layer's CVT based mode
* 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;
-
- mode = drm_mode_create(dev);
- if (!mode)
- return NULL;
-
+ unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
+ >> EDID_TIMING_VFREQ_SHIFT;
+
+ /* 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;
else if (aspect_ratio == 1)
@@ -267,9 +536,30 @@ struct drm_display_mode *drm_mode_std(struct drm_device *dev,
vsize = (hsize * 4) / 5;
else
vsize = (hsize * 9) / 16;
-
- drm_mode_set_name(mode);
-
+ /* 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;
+
+ 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;
}
@@ -451,6 +741,19 @@ static int add_established_modes(struct drm_connector *connector, struct edid *e
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
@@ -463,6 +766,9 @@ static int add_standard_modes(struct drm_connector *connector, struct edid *edid
{
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];
@@ -472,7 +778,8 @@ static int add_standard_modes(struct drm_connector *connector, struct edid *edid
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++;
@@ -496,6 +803,9 @@ static int add_detailed_info(struct drm_connector *connector,
{
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];
@@ -525,7 +835,8 @@ static int add_detailed_info(struct drm_connector *connector,
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++;
@@ -551,6 +862,122 @@ static int add_detailed_info(struct drm_connector *connector,
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 */
+ 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;
+
+ 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;
+ }
+ }
+
+ return modes;
+}
#define DDC_ADDR 0x50
/**
@@ -584,7 +1011,6 @@ int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
if (i2c_transfer(adapter, msgs, 2) == 2)
return 0;
- dev_info(&adapter->dev, "unable to read EDID block.\n");
return -1;
}
EXPORT_SYMBOL(drm_do_probe_ddc_edid);
@@ -597,8 +1023,6 @@ static int drm_ddc_read_edid(struct drm_connector *connector,
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)) {
@@ -610,7 +1034,6 @@ end:
return ret;
}
-#define MAX_EDID_EXT_NUM 4
/**
* drm_get_edid - get EDID data, if available
* @connector: connector we're probing
@@ -763,6 +1186,7 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
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);
@@ -788,3 +1212,49 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
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);