3  * Copyright (c) 2007-2008 Intel Corporation
24  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
40 	(((edid)->version > (maj)) || \
41 	 ((edid)->version == (maj) && (edid)->revision > (min)))
70 /* Force reduced-blanking timings for detailed modes */
74 	struct drm_connector *connector;  member
102 	/* Envision Peripherals, Inc. EN-7100e */
111 	/* LG Philips LCD LP154W01-A5 */
123 	/* Samsung SyncMaster 22[5-6]BW */
156 		 "Minimum number of valid EDID header bytes (0-8, default 6)");
194 	/* per-block-type checks */  in drm_edid_block_valid()
197 		if (edid->version != 1) {  in drm_edid_block_valid()
198 			DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);  in drm_edid_block_valid()
202 		if (edid->revision > 4)  in drm_edid_block_valid()
231  * drm_edid_is_valid - sanity check EDID data
234  * Sanity-check an entire EDID record (including extensions)
244 	for (i = 0; i <= edid->extensions; i++)  in drm_edid_is_valid()
259  * \return 0 on success or -1 on failure.
273 	 * adapter reports EAGAIN. However, we find that bit-banging transfers  in drm_do_probe_ddc_edid()
299 	 * Avoid sending the segment addr to not upset non-compliant ddc  in drm_do_probe_ddc_edid()
302 		ret = iicbus_transfer(adapter, &msgs[3 - xfers], xfers);  in drm_do_probe_ddc_edid()
307 	} while (ret != 0 && --retries);  in drm_do_probe_ddc_edid()
309 	return ret == 0 ? 0 : -1;  in drm_do_probe_ddc_edid()
325 drm_do_get_edid(struct drm_connector *connector, device_t adapter)  in drm_do_get_edid()  argument
329 	bool print_bad_edid = !connector->bad_edid_counter || (drm_debug & DRM_DEBUGBITS_KMS);  in drm_do_get_edid()
341 			connector->null_edid_counter++;  in drm_do_get_edid()
373 			dev_warn(connector->dev->dev,  in drm_do_get_edid()
375 			 drm_get_connector_name(connector), j);  in drm_do_get_edid()
377 			connector->bad_edid_counter++;  in drm_do_get_edid()
382 		block[EDID_LENGTH-1] += block[0x7e] - valid_extensions;  in drm_do_get_edid()
395 		dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",  in drm_do_get_edid()
396 			 drm_get_connector_name(connector), j);  in drm_do_get_edid()
398 	connector->bad_edid_counter++;  in drm_do_get_edid()
421  * drm_get_edid - get EDID data, if available
422  * @connector: connector we're probing
426  * attach it to the connector.
430 struct edid *drm_get_edid(struct drm_connector *connector,  in drm_get_edid()  argument
436 		edid = (struct edid *)drm_do_get_edid(connector, adapter);  in drm_get_edid()
445  * edid_vendor - match a string against EDID's obfuscated vendor field
455 	edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';  in edid_vendor()
456 	edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |  in edid_vendor()
457 			  ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';  in edid_vendor()
458 	edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';  in edid_vendor()
464  * edid_get_quirks - return quirk flags for a given EDID
477 		if (edid_vendor(edid, quirk->vendor) &&  in edid_get_quirks()
478 		    (EDID_PRODUCT_ID(edid) == quirk->product_id))  in edid_get_quirks()
479 			return quirk->quirks;  in edid_get_quirks()
485 #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
486 #define MODE_REFRESH_DIFF(m,r) (abs((m)->vrefresh - target_refresh))
489  * edid_fixup_preferred - set preferred modes based on quirk list
490  * @connector: has mode list to fix up
493  * Walk the mode list for @connector, clearing the preferred status
496 static void edid_fixup_preferred(struct drm_connector *connector,  in edid_fixup_preferred()  argument
502 	if (list_empty(&connector->probed_modes))  in edid_fixup_preferred()
510 	preferred_mode = list_first_entry(&connector->probed_modes,  in edid_fixup_preferred()
513 	list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {  in edid_fixup_preferred()
514 		cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;  in edid_fixup_preferred()
531 	preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;  in edid_fixup_preferred()
537 	return (mode->htotal - mode->hdisplay == 160) &&  in mode_is_rb()
538 	       (mode->hsync_end - mode->hdisplay == 80) &&  in mode_is_rb()
539 	       (mode->hsync_end - mode->hsync_start == 32) &&  in mode_is_rb()
540 	       (mode->vsync_start - mode->vdisplay == 3);  in mode_is_rb()
544  * drm_mode_find_dmt - Create a copy of a mode if present in DMT
549  * @rb: Mode reduced-blanking-ness
562 		if (hsize != ptr->hdisplay)  in drm_mode_find_dmt()
564 		if (vsize != ptr->vdisplay)  in drm_mode_find_dmt()
587 	n = (127 - d) / 18;  in cea_for_each_detailed_block()
615 		cb(&(edid->detailed_timings[i]), closure);  in drm_for_each_detailed_block()
645 	if (edid->revision >= 4) {  in drm_monitor_supports_rb()
651 	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);  in drm_monitor_supports_rb()
704  * standard_timing_level - get std. timing level(CVT/GTF/DMT)
709 	if (edid->revision >= 2) {  in standard_timing_level()
710 		if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))  in standard_timing_level()
732  * drm_mode_std - convert standard mode info (width, height, refresh) into mode
740 drm_mode_std(struct drm_connector *connector, struct edid *edid,  in drm_mode_std()  argument
743 	struct drm_device *dev = connector->dev;  in drm_mode_std()
747 	unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)  in drm_mode_std()
749 	unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)  in drm_mode_std()
753 	if (bad_std_timing(t->hsize, t->vfreq_aspect))  in drm_mode_std()
757 	hsize = t->hsize * 8 + 248;  in drm_mode_std()
782 	 * If this connector already has a mode for this size and refresh  in drm_mode_std()
787 	list_for_each_entry(m, &connector->probed_modes, head)  in drm_mode_std()
788 		if (m->hdisplay == hsize && m->vdisplay == vsize &&  in drm_mode_std()
796 		mode->hdisplay = 1366;  in drm_mode_std()
797 		mode->hsync_start = mode->hsync_start - 1;  in drm_mode_std()
798 		mode->hsync_end = mode->hsync_end - 1;  in drm_mode_std()
872 	if (!(pt->misc & DRM_EDID_PT_INTERLACED))  in drm_mode_do_interlace_quirk()
876 		if ((mode->hdisplay == cea_interlaced[i].w) &&  in drm_mode_do_interlace_quirk()
877 		    (mode->vdisplay == cea_interlaced[i].h / 2)) {  in drm_mode_do_interlace_quirk()
878 			mode->vdisplay *= 2;  in drm_mode_do_interlace_quirk()
879 			mode->vsync_start *= 2;  in drm_mode_do_interlace_quirk()
880 			mode->vsync_end *= 2;  in drm_mode_do_interlace_quirk()
881 			mode->vtotal *= 2;  in drm_mode_do_interlace_quirk()
882 			mode->vtotal |= 1;  in drm_mode_do_interlace_quirk()
886 	mode->flags |= DRM_MODE_FLAG_INTERLACE;  in drm_mode_do_interlace_quirk()
890  * drm_mode_detailed - create a new mode from an EDID detailed timing section
905 	struct detailed_pixel_timing *pt = &timing->data.pixel_data;  in drm_mode_detailed()
906 	unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;  in drm_mode_detailed()
907 	unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;  in drm_mode_detailed()
908 	unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;  in drm_mode_detailed()
909 	unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;  in drm_mode_detailed()
910 	unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;  in drm_mode_detailed()
911 …unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse…  in drm_mode_detailed()
912 …unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_puls…  in drm_mode_detailed()
913 …unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offse…  in drm_mode_detailed()
919 	if (pt->misc & DRM_EDID_PT_STEREO) {  in drm_mode_detailed()
923 	if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {  in drm_mode_detailed()
947 		timing->pixel_clock = cpu_to_le16(1088);  in drm_mode_detailed()
949 	mode->clock = le16_to_cpu(timing->pixel_clock) * 10;  in drm_mode_detailed()
951 	mode->hdisplay = hactive;  in drm_mode_detailed()
952 	mode->hsync_start = mode->hdisplay + hsync_offset;  in drm_mode_detailed()
953 	mode->hsync_end = mode->hsync_start + hsync_pulse_width;  in drm_mode_detailed()
954 	mode->htotal = mode->hdisplay + hblank;  in drm_mode_detailed()
956 	mode->vdisplay = vactive;  in drm_mode_detailed()
957 	mode->vsync_start = mode->vdisplay + vsync_offset;  in drm_mode_detailed()
958 	mode->vsync_end = mode->vsync_start + vsync_pulse_width;  in drm_mode_detailed()
959 	mode->vtotal = mode->vdisplay + vblank;  in drm_mode_detailed()
962 	if (mode->hsync_end > mode->htotal)  in drm_mode_detailed()
963 		mode->htotal = mode->hsync_end + 1;  in drm_mode_detailed()
964 	if (mode->vsync_end > mode->vtotal)  in drm_mode_detailed()
965 		mode->vtotal = mode->vsync_end + 1;  in drm_mode_detailed()
970 		pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;  in drm_mode_detailed()
973 	mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?  in drm_mode_detailed()
975 	mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?  in drm_mode_detailed()
979 	mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;  in drm_mode_detailed()
980 	mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;  in drm_mode_detailed()
983 		mode->width_mm *= 10;  in drm_mode_detailed()
984 		mode->height_mm *= 10;  in drm_mode_detailed()
988 		mode->width_mm = edid->width_cm * 10;  in drm_mode_detailed()
989 		mode->height_mm = edid->height_cm * 10;  in drm_mode_detailed()
992 	mode->type = DRM_MODE_TYPE_DRIVER;  in drm_mode_detailed()
993 	mode->vrefresh = drm_mode_vrefresh(mode);  in drm_mode_detailed()
1006 	if (edid->revision >= 4)  in mode_in_hsync_range()
1009 	if (edid->revision >= 4)  in mode_in_hsync_range()
1023 	if (edid->revision >= 4)  in mode_in_vsync_range()
1026 	if (edid->revision >= 4)  in mode_in_vsync_range()
1041 	if (edid->revision >= 4 && t[10] == 0x04)  in range_pixel_clock()
1042 		return (t[9] * 10000) - ((t[12] >> 2) * 250);  in range_pixel_clock()
1062 		if (mode->clock > max_clock)  in mode_in_range()
1066 	if (edid->revision >= 4 && t[10] == 0x04)  in mode_in_range()
1067 		if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))  in mode_in_range()
1076 static bool valid_inferred_mode(const struct drm_connector *connector,  in valid_inferred_mode()  argument
1082 	list_for_each_entry(m, &connector->probed_modes, head) {  in valid_inferred_mode()
1083 		if (mode->hdisplay == m->hdisplay &&  in valid_inferred_mode()
1084 		    mode->vdisplay == m->vdisplay &&  in valid_inferred_mode()
1087 		if (mode->hdisplay <= m->hdisplay &&  in valid_inferred_mode()
1088 		    mode->vdisplay <= m->vdisplay)  in valid_inferred_mode()
1095 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_dmt_modes_for_range()  argument
1100 	struct drm_device *dev = connector->dev;  in drm_dmt_modes_for_range()
1104 		    valid_inferred_mode(connector, drm_dmt_modes + i)) {  in drm_dmt_modes_for_range()
1107 				drm_mode_probed_add(connector, newmode);  in drm_dmt_modes_for_range()
1121 	if (mode->hdisplay == 1368 && mode->vdisplay == 768) {  in fixup_mode_1366x768()
1122 		mode->hdisplay = 1366;  in fixup_mode_1366x768()
1123 		mode->hsync_start--;  in fixup_mode_1366x768()
1124 		mode->hsync_end--;  in fixup_mode_1366x768()
1130 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_gtf_modes_for_range()  argument
1135 	struct drm_device *dev = connector->dev;  in drm_gtf_modes_for_range()
1139 		newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);  in drm_gtf_modes_for_range()
1145 		    !valid_inferred_mode(connector, newmode)) {  in drm_gtf_modes_for_range()
1150 		drm_mode_probed_add(connector, newmode);  in drm_gtf_modes_for_range()
1158 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_cvt_modes_for_range()  argument
1163 	struct drm_device *dev = connector->dev;  in drm_cvt_modes_for_range()
1168 		newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);  in drm_cvt_modes_for_range()
1174 		    !valid_inferred_mode(connector, newmode)) {  in drm_cvt_modes_for_range()
1179 		drm_mode_probed_add(connector, newmode);  in drm_cvt_modes_for_range()
1190 	struct detailed_non_pixel *data = &timing->data.other_data;  in do_inferred_modes()
1191 	struct detailed_data_monitor_range *range = &data->data.range;  in do_inferred_modes()
1193 	if (data->type != EDID_DETAIL_MONITOR_RANGE)  in do_inferred_modes()
1196 	closure->modes += drm_dmt_modes_for_range(closure->connector,  in do_inferred_modes()
1197 						  closure->edid,  in do_inferred_modes()
1200 	if (!version_greater(closure->edid, 1, 1))  in do_inferred_modes()
1203 	switch (range->flags) {  in do_inferred_modes()
1206 		closure->modes += drm_gtf_modes_for_range(closure->connector,  in do_inferred_modes()
1207 							  closure->edid,  in do_inferred_modes()
1211 		if (!version_greater(closure->edid, 1, 3))  in do_inferred_modes()
1214 		closure->modes += drm_cvt_modes_for_range(closure->connector,  in do_inferred_modes()
1215 							  closure->edid,  in do_inferred_modes()
1225 add_inferred_modes(struct drm_connector *connector, struct edid *edid)  in add_inferred_modes()  argument
1228 		connector, edid, 0, 0, 0  in add_inferred_modes()
1239 drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)  in drm_est3_modes()  argument
1246 		for (j = 7; j > 0; j--) {  in drm_est3_modes()
1247 			m = (i * 8) + (7 - j);  in drm_est3_modes()
1251 				mode = drm_mode_find_dmt(connector->dev,  in drm_est3_modes()
1257 					drm_mode_probed_add(connector, mode);  in drm_est3_modes()
1271 	struct detailed_non_pixel *data = &timing->data.other_data;  in do_established_modes()
1273 	if (data->type == EDID_DETAIL_EST_TIMINGS)  in do_established_modes()
1274 		closure->modes += drm_est3_modes(closure->connector, timing);  in do_established_modes()
1278  * add_established_modes - get est. modes from EDID and add them
1285 add_established_modes(struct drm_connector *connector, struct edid *edid)  in add_established_modes()  argument
1287 	struct drm_device *dev = connector->dev;  in add_established_modes()
1288 	unsigned long est_bits = edid->established_timings.t1 |  in add_established_modes()
1289 		(edid->established_timings.t2 << 8) |  in add_established_modes()
1290 		((edid->established_timings.mfg_rsvd & 0x80) << 9);  in add_established_modes()
1293 		connector, edid, 0, 0, 0  in add_established_modes()
1301 				drm_mode_probed_add(connector, newmode);  in add_established_modes()
1318 	struct detailed_non_pixel *data = &timing->data.other_data;  in do_standard_modes()
1319 	struct drm_connector *connector = closure->connector;  in do_standard_modes()  local
1320 	struct edid *edid = closure->edid;  in do_standard_modes()
1322 	if (data->type == EDID_DETAIL_STD_MODES) {  in do_standard_modes()
1328 			std = &data->data.timings[i];  in do_standard_modes()
1329 			newmode = drm_mode_std(connector, edid, std,  in do_standard_modes()
1330 					       edid->revision);  in do_standard_modes()
1332 				drm_mode_probed_add(connector, newmode);  in do_standard_modes()
1333 				closure->modes++;  in do_standard_modes()
1340  * add_standard_modes - get std. modes from EDID and add them
1347 add_standard_modes(struct drm_connector *connector, struct edid *edid)  in add_standard_modes()  argument
1351 		connector, edid, 0, 0, 0  in add_standard_modes()
1357 		newmode = drm_mode_std(connector, edid,  in add_standard_modes()
1358 				       &edid->standard_timings[i],  in add_standard_modes()
1359 				       edid->revision);  in add_standard_modes()
1361 			drm_mode_probed_add(connector, newmode);  in add_standard_modes()
1375 static int drm_cvt_modes(struct drm_connector *connector,  in drm_cvt_modes()  argument
1380 	struct drm_device *dev = connector->dev;  in drm_cvt_modes()
1387 		cvt = &(timing->data.other_data.data.cvt[i]);  in drm_cvt_modes()
1389 		if (!memcmp(cvt->code, empty, 3))  in drm_cvt_modes()
1392 		height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;  in drm_cvt_modes()
1393 		switch (cvt->code[1] & 0x0c) {  in drm_cvt_modes()
1409 			if (cvt->code[2] & (1 << j)) {  in drm_cvt_modes()
1414 					drm_mode_probed_add(connector, newmode);  in drm_cvt_modes()
1428 	struct detailed_non_pixel *data = &timing->data.other_data;  in do_cvt_mode()
1430 	if (data->type == EDID_DETAIL_CVT_3BYTE)  in do_cvt_mode()
1431 		closure->modes += drm_cvt_modes(closure->connector, timing);  in do_cvt_mode()
1435 add_cvt_modes(struct drm_connector *connector, struct edid *edid)  in add_cvt_modes()  argument
1438 		connector, edid, 0, 0, 0  in add_cvt_modes()
1455 	if (timing->pixel_clock) {  in do_detailed_mode()
1456 		newmode = drm_mode_detailed(closure->connector->dev,  in do_detailed_mode()
1457 					    closure->edid, timing,  in do_detailed_mode()
1458 					    closure->quirks);  in do_detailed_mode()
1462 		if (closure->preferred)  in do_detailed_mode()
1463 			newmode->type |= DRM_MODE_TYPE_PREFERRED;  in do_detailed_mode()
1465 		drm_mode_probed_add(closure->connector, newmode);  in do_detailed_mode()
1466 		closure->modes++;  in do_detailed_mode()
1467 		closure->preferred = 0;  in do_detailed_mode()
1472  * add_detailed_modes - Add modes from detailed timings
1473  * @connector: attached connector
1478 add_detailed_modes(struct drm_connector *connector, struct edid *edid,  in add_detailed_modes()  argument
1482 		connector,  in add_detailed_modes()
1491 		    (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);  in add_detailed_modes()
1516 	if (edid == NULL || edid->extensions == 0)  in drm_find_cea_extension()
1520 	for (i = 0; i < edid->extensions; i++) {  in drm_find_cea_extension()
1526 	if (i == edid->extensions)  in drm_find_cea_extension()
1554 do_cea_modes (struct drm_connector *connector, u8 *db, u8 len)  in do_cea_modes()  argument
1556 	struct drm_device *dev = connector->dev;  in do_cea_modes()
1561 		cea_mode = (*mode & 127) - 1; /* CEA modes are numbered 1..127 */  in do_cea_modes()
1567 				drm_mode_probed_add(connector, newmode);  in do_cea_modes()
1603 		return -ERANGE;  in cea_db_offsets()
1611 add_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_cea_modes()  argument
1628 				modes += do_cea_modes (connector, db+1, dbl);  in add_cea_modes()
1636 parse_hdmi_vsdb(struct drm_connector *connector, const u8 *db)  in parse_hdmi_vsdb()  argument
1641 		connector->eld[5] |= (db[6] >> 7) << 1;  /* Supports_AI */  in parse_hdmi_vsdb()
1642 		connector->dvi_dual = db[6] & 1;  in parse_hdmi_vsdb()
1645 		connector->max_tmds_clock = db[7] * 5;  in parse_hdmi_vsdb()
1647 		connector->latency_present[0] = db[8] >> 7;  in parse_hdmi_vsdb()
1648 		connector->latency_present[1] = (db[8] >> 6) & 1;  in parse_hdmi_vsdb()
1651 		connector->video_latency[0] = db[9];  in parse_hdmi_vsdb()
1653 		connector->audio_latency[0] = db[10];  in parse_hdmi_vsdb()
1655 		connector->video_latency[1] = db[11];  in parse_hdmi_vsdb()
1657 		connector->audio_latency[1] = db[12];  in parse_hdmi_vsdb()
1659 	DRM_DEBUG_KMS("HDMI: DVI dual %d, "  in parse_hdmi_vsdb()
1664 		    connector->dvi_dual,  in parse_hdmi_vsdb()
1665 		    connector->max_tmds_clock,  in parse_hdmi_vsdb()
1666 	      (int) connector->latency_present[0],  in parse_hdmi_vsdb()
1667 	      (int) connector->latency_present[1],  in parse_hdmi_vsdb()
1668 		    connector->video_latency[0],  in parse_hdmi_vsdb()
1669 		    connector->video_latency[1],  in parse_hdmi_vsdb()
1670 		    connector->audio_latency[0],  in parse_hdmi_vsdb()
1671 		    connector->audio_latency[1]);  in parse_hdmi_vsdb()
1677 	if (t->data.other_data.type == EDID_DETAIL_MONITOR_NAME)  in monitor_name()
1678 		*(u8 **)data = t->data.other_data.data.str.str;  in monitor_name()
1697  * drm_edid_to_eld - build ELD from EDID
1698  * @connector: connector corresponding to the HDMI/DP sink
1701  * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver.
1703  * - Conn_Type
1704  * - HDCP
1705  * - Port_ID
1707 void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)  in drm_edid_to_eld()  argument
1709 	uint8_t *eld = connector->eld;  in drm_edid_to_eld()
1717 	memset(eld, 0, sizeof(connector->eld));  in drm_edid_to_eld()
1737 	eld[16] = edid->mfg_id[0];  in drm_edid_to_eld()
1738 	eld[17] = edid->mfg_id[1];  in drm_edid_to_eld()
1739 	eld[18] = edid->prod_code[0];  in drm_edid_to_eld()
1740 	eld[19] = edid->prod_code[1];  in drm_edid_to_eld()
1767 				/* HDMI Vendor-Specific Data Block */  in drm_edid_to_eld()
1769 					parse_hdmi_vsdb(connector, db);  in drm_edid_to_eld()
1784  * drm_av_sync_delay - HDMI/DP sink audio-video sync delay in millisecond
1785  * @connector: connector associated with the HDMI/DP sink
1788 int drm_av_sync_delay(struct drm_connector *connector,  in drm_av_sync_delay()  argument
1791 	int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);  in drm_av_sync_delay()
1794 	if (!connector->latency_present[0])  in drm_av_sync_delay()
1796 	if (!connector->latency_present[1])  in drm_av_sync_delay()
1799 	a = connector->audio_latency[i];  in drm_av_sync_delay()
1800 	v = connector->video_latency[i];  in drm_av_sync_delay()
1813 		a = min(2 * (a - 1), 500);  in drm_av_sync_delay()
1815 		v = min(2 * (v - 1), 500);  in drm_av_sync_delay()
1817 	return max(v - a, 0);  in drm_av_sync_delay()
1822  * drm_select_eld - select one ELD from multiple HDMI/DP sinks
1832 	struct drm_connector *connector;  in drm_select_eld()  local
1833 	struct drm_device *dev = encoder->dev;  in drm_select_eld()
1835 	list_for_each_entry(connector, &dev->mode_config.connector_list, head)  in drm_select_eld()
1836 		if (connector->encoder == encoder && connector->eld[0])  in drm_select_eld()
1837 			return connector;  in drm_select_eld()
1844  * drm_detect_hdmi_monitor - detect whether monitor is hdmi.
1847  * Parse the CEA extension according to CEA-861-B.
1877  * drm_detect_monitor_audio - check monitor audio capability
1922  * drm_add_display_info - pull display info out if present
1924  * @info: display info (attached to connector)
1927  * structure that's part of the connector.  Useful for tracking bpp and
1935 	info->width_mm = edid->width_cm * 10;  in drm_add_display_info()
1936 	info->height_mm = edid->height_cm * 10;  in drm_add_display_info()
1939 	info->bpc = 0;  in drm_add_display_info()
1940 	info->color_formats = 0;  in drm_add_display_info()
1942 	if (edid->revision < 3)  in drm_add_display_info()
1945 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))  in drm_add_display_info()
1951 		info->cea_rev = edid_ext[1];  in drm_add_display_info()
1954 		info->color_formats = DRM_COLOR_FORMAT_RGB444;  in drm_add_display_info()
1956 			info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;  in drm_add_display_info()
1958 			info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;  in drm_add_display_info()
1962 	if (edid->revision < 4)  in drm_add_display_info()
1965 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {  in drm_add_display_info()
1967 		info->bpc = 6;  in drm_add_display_info()
1970 		info->bpc = 8;  in drm_add_display_info()
1973 		info->bpc = 10;  in drm_add_display_info()
1976 		info->bpc = 12;  in drm_add_display_info()
1979 		info->bpc = 14;  in drm_add_display_info()
1982 		info->bpc = 16;  in drm_add_display_info()
1986 		info->bpc = 0;  in drm_add_display_info()
1990 	info->color_formats |= DRM_COLOR_FORMAT_RGB444;  in drm_add_display_info()
1991 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)  in drm_add_display_info()
1992 		info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;  in drm_add_display_info()
1993 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)  in drm_add_display_info()
1994 		info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;  in drm_add_display_info()
1998  * drm_add_edid_modes - add modes from EDID data, if available
1999  * @connector: connector we're probing
2002  * Add the specified modes to the connector's mode list.
2006 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)  in drm_add_edid_modes()  argument
2015 		dev_warn(connector->dev->dev, "%s: EDID invalid.\n",  in drm_add_edid_modes()
2016 			 drm_get_connector_name(connector));  in drm_add_edid_modes()
2024 	 * - preferred detailed mode  in drm_add_edid_modes()
2025 	 * - other detailed modes from base block  in drm_add_edid_modes()
2026 	 * - detailed modes from extension blocks  in drm_add_edid_modes()
2027 	 * - CVT 3-byte code modes  in drm_add_edid_modes()
2028 	 * - standard timing codes  in drm_add_edid_modes()
2029 	 * - established timing codes  in drm_add_edid_modes()
2030 	 * - modes inferred from GTF or CVT range information  in drm_add_edid_modes()
2036 	num_modes += add_detailed_modes(connector, edid, quirks);  in drm_add_edid_modes()
2037 	num_modes += add_cvt_modes(connector, edid);  in drm_add_edid_modes()
2038 	num_modes += add_standard_modes(connector, edid);  in drm_add_edid_modes()
2039 	num_modes += add_established_modes(connector, edid);  in drm_add_edid_modes()
2040 	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in drm_add_edid_modes()
2041 		num_modes += add_inferred_modes(connector, edid);  in drm_add_edid_modes()
2042 	num_modes += add_cea_modes(connector, edid);  in drm_add_edid_modes()
2045 		edid_fixup_preferred(connector, quirks);  in drm_add_edid_modes()
2047 	drm_add_display_info(edid, &connector->display_info);  in drm_add_edid_modes()
2054  * drm_add_modes_noedid - add modes for the connectors without EDID
2055  * @connector: connector we're probing
2059  * Add the specified modes to the connector's mode list. Only when the
2064 int drm_add_modes_noedid(struct drm_connector *connector,  in drm_add_modes_noedid()  argument
2069 	struct drm_device *dev = connector->dev;  in drm_add_modes_noedid()
2083 			 * the connector.  in drm_add_modes_noedid()
2085 			if (ptr->hdisplay > hdisplay ||  in drm_add_modes_noedid()
2086 					ptr->vdisplay > vdisplay)  in drm_add_modes_noedid()
2093 			drm_mode_probed_add(connector, mode);  in drm_add_modes_noedid()
2102  * drm_mode_cea_vic - return the CEA-861 VIC of a given mode
2106  * The VIC number, 0 in case it's not a CEA-861 mode.