44 #define version_greater(edid, maj, min) \  argument
45 	(((edid)->version > (maj)) || \
46 	 ((edid)->version == (maj) && (edid)->revision > (min)))
90 	struct edid *edid;  member
1323 			      struct edid *edid);
1359 	struct edid *edid = (struct edid *)raw_edid;  in drm_edid_block_valid()  local
1409 		if (edid->version != 1) {  in drm_edid_block_valid()
1410 			DRM_NOTE("EDID has major version %d, instead of 1\n", edid->version);  in drm_edid_block_valid()
1414 		if (edid->revision > 4)  in drm_edid_block_valid()
1447 bool drm_edid_is_valid(struct edid *edid)  in drm_edid_is_valid()  argument
1450 	u8 *raw = (u8 *)edid;  in drm_edid_is_valid()
1452 	if (!edid)  in drm_edid_is_valid()
1455 	for (i = 0; i <= edid->extensions; i++)  in drm_edid_is_valid()
1528 			       u8 *edid, int num_blocks)  in connector_bad_edid()  argument
1539 		u8 *block = edid + i * EDID_LENGTH;  in connector_bad_edid()
1575 struct edid *drm_do_get_edid(struct drm_connector *connector,  in drm_do_get_edid()
1581 	u8 *edid, *new;  in drm_do_get_edid()  local
1582 	struct edid *override = NULL;  in drm_do_get_edid()
1593 	if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)  in drm_do_get_edid()
1598 		if (get_edid_block(data, edid, 0, EDID_LENGTH))  in drm_do_get_edid()
1600 		if (drm_edid_block_valid(edid, 0, false,  in drm_do_get_edid()
1603 		if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) {  in drm_do_get_edid()
1612 	valid_extensions = edid[0x7e];  in drm_do_get_edid()
1614 		return (struct edid *)edid;  in drm_do_get_edid()
1616 	new = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);  in drm_do_get_edid()
1619 	edid = new;  in drm_do_get_edid()
1621 	for (j = 1; j <= edid[0x7e]; j++) {  in drm_do_get_edid()
1622 		u8 *block = edid + j * EDID_LENGTH;  in drm_do_get_edid()
1635 	if (valid_extensions != edid[0x7e]) {  in drm_do_get_edid()
1638 		connector_bad_edid(connector, edid, edid[0x7e] + 1);  in drm_do_get_edid()
1640 		edid[EDID_LENGTH-1] += edid[0x7e] - valid_extensions;  in drm_do_get_edid()
1641 		edid[0x7e] = valid_extensions;  in drm_do_get_edid()
1649 		for (i = 0; i <= edid[0x7e]; i++) {  in drm_do_get_edid()
1650 			u8 *block = edid + i * EDID_LENGTH;  in drm_do_get_edid()
1659 		kfree(edid);  in drm_do_get_edid()
1660 		edid = new;  in drm_do_get_edid()
1663 	return (struct edid *)edid;  in drm_do_get_edid()
1666 	connector_bad_edid(connector, edid, 1);  in drm_do_get_edid()
1668 	kfree(edid);  in drm_do_get_edid()
1698 struct edid *drm_get_edid(struct drm_connector *connector,  in drm_get_edid()
1701 	struct edid *edid;  in drm_get_edid()  local
1709 	edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);  in drm_get_edid()
1710 	if (edid)  in drm_get_edid()
1711 		drm_get_displayid(connector, edid);  in drm_get_edid()
1712 	return edid;  in drm_get_edid()
1727 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,  in drm_get_edid_switcheroo()
1731 	struct edid *edid;  in drm_get_edid_switcheroo()  local
1734 	edid = drm_get_edid(connector, adapter);  in drm_get_edid_switcheroo()
1737 	return edid;  in drm_get_edid_switcheroo()
1747 struct edid *drm_edid_duplicate(const struct edid *edid)  in drm_edid_duplicate()  argument
1749 	return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);  in drm_edid_duplicate()
1762 static bool edid_vendor(const struct edid *edid, const char *vendor)  in edid_vendor()  argument
1766 	edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';  in edid_vendor()
1767 	edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |  in edid_vendor()
1768 			  ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';  in edid_vendor()
1769 	edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';  in edid_vendor()
1780 static u32 edid_get_quirks(const struct edid *edid)  in edid_get_quirks()  argument
1788 		if (edid_vendor(edid, quirk->vendor) &&  in edid_get_quirks()
1789 		    (EDID_PRODUCT_ID(edid) == quirk->product_id))  in edid_get_quirks()
1926 	struct edid *edid = (struct edid *)raw_edid;  in drm_for_each_detailed_block()  local
1928 	if (edid == NULL)  in drm_for_each_detailed_block()
1932 		cb(&(edid->detailed_timings[i]), closure);  in drm_for_each_detailed_block()
1960 drm_monitor_supports_rb(struct edid *edid)  in drm_monitor_supports_rb()  argument
1962 	if (edid->revision >= 4) {  in drm_monitor_supports_rb()
1964 		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);  in drm_monitor_supports_rb()
1968 	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);  in drm_monitor_supports_rb()
1981 drm_gtf2_hbreak(struct edid *edid)  in drm_gtf2_hbreak()  argument
1984 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_hbreak()
1989 drm_gtf2_2c(struct edid *edid)  in drm_gtf2_2c()  argument
1992 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2c()
1997 drm_gtf2_m(struct edid *edid)  in drm_gtf2_m()  argument
2000 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_m()
2005 drm_gtf2_k(struct edid *edid)  in drm_gtf2_k()  argument
2008 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_k()
2013 drm_gtf2_2j(struct edid *edid)  in drm_gtf2_2j()  argument
2016 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2j()
2024 static int standard_timing_level(struct edid *edid)  in standard_timing_level()  argument
2026 	if (edid->revision >= 2) {  in standard_timing_level()
2027 		if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))  in standard_timing_level()
2029 		if (drm_gtf2_hbreak(edid))  in standard_timing_level()
2058 drm_mode_std(struct drm_connector *connector, struct edid *edid,  in drm_mode_std()  argument
2069 	int timing_level = standard_timing_level(edid);  in drm_mode_std()
2080 		if (edid->revision < 3)  in drm_mode_std()
2123 	if (drm_monitor_supports_rb(edid)) {  in drm_mode_std()
2149 		if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {  in drm_mode_std()
2153 						    drm_gtf2_m(edid),  in drm_mode_std()
2154 						    drm_gtf2_2c(edid),  in drm_mode_std()
2155 						    drm_gtf2_k(edid),  in drm_mode_std()
2156 						    drm_gtf2_2j(edid));  in drm_mode_std()
2220 						  struct edid *edid,  in drm_mode_detailed()  argument
2308 		mode->width_mm = edid->width_cm * 10;  in drm_mode_detailed()
2309 		mode->height_mm = edid->height_cm * 10;  in drm_mode_detailed()
2321 		    struct edid *edid, u8 *t)  in mode_in_hsync_range()  argument
2326 	if (edid->revision >= 4)  in mode_in_hsync_range()
2329 	if (edid->revision >= 4)  in mode_in_hsync_range()
2338 		    struct edid *edid, u8 *t)  in mode_in_vsync_range()  argument
2343 	if (edid->revision >= 4)  in mode_in_vsync_range()
2346 	if (edid->revision >= 4)  in mode_in_vsync_range()
2354 range_pixel_clock(struct edid *edid, u8 *t)  in range_pixel_clock()  argument
2361 	if (edid->revision >= 4 && t[10] == 0x04)  in range_pixel_clock()
2369 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,  in mode_in_range()  argument
2375 	if (!mode_in_hsync_range(mode, edid, t))  in mode_in_range()
2378 	if (!mode_in_vsync_range(mode, edid, t))  in mode_in_range()
2381 	if ((max_clock = range_pixel_clock(edid, t)))  in mode_in_range()
2386 	if (edid->revision >= 4 && t[10] == 0x04)  in mode_in_range()
2390 	if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))  in mode_in_range()
2415 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_dmt_modes_for_range()  argument
2423 		if (mode_in_range(drm_dmt_modes + i, edid, timing) &&  in drm_dmt_modes_for_range()
2450 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_gtf_modes_for_range()  argument
2464 		if (!mode_in_range(newmode, edid, timing) ||  in drm_gtf_modes_for_range()
2478 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_cvt_modes_for_range()  argument
2484 	bool rb = drm_monitor_supports_rb(edid);  in drm_cvt_modes_for_range()
2493 		if (!mode_in_range(newmode, edid, timing) ||  in drm_cvt_modes_for_range()
2517 						  closure->edid,  in do_inferred_modes()
2520 	if (!version_greater(closure->edid, 1, 1))  in do_inferred_modes()
2527 							  closure->edid,  in do_inferred_modes()
2531 		if (!version_greater(closure->edid, 1, 3))  in do_inferred_modes()
2535 							  closure->edid,  in do_inferred_modes()
2545 add_inferred_modes(struct drm_connector *connector, struct edid *edid)  in add_inferred_modes()  argument
2549 		.edid = edid,  in add_inferred_modes()
2552 	if (version_greater(edid, 1, 0))  in add_inferred_modes()
2553 		drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,  in add_inferred_modes()
2607 add_established_modes(struct drm_connector *connector, struct edid *edid)  in add_established_modes()  argument
2610 	unsigned long est_bits = edid->established_timings.t1 |  in add_established_modes()
2611 		(edid->established_timings.t2 << 8) |  in add_established_modes()
2612 		((edid->established_timings.mfg_rsvd & 0x80) << 9);  in add_established_modes()
2616 		.edid = edid,  in add_established_modes()
2630 	if (version_greater(edid, 1, 0))  in add_established_modes()
2631 		    drm_for_each_detailed_block((u8 *)edid,  in add_established_modes()
2643 	struct edid *edid = closure->edid;  in do_standard_modes()  local
2652 			newmode = drm_mode_std(connector, edid, std);  in do_standard_modes()
2670 add_standard_modes(struct drm_connector *connector, struct edid *edid)  in add_standard_modes()  argument
2675 		.edid = edid,  in add_standard_modes()
2681 		newmode = drm_mode_std(connector, edid,  in add_standard_modes()
2682 				       &edid->standard_timings[i]);  in add_standard_modes()
2689 	if (version_greater(edid, 1, 0))  in add_standard_modes()
2690 		drm_for_each_detailed_block((u8 *)edid, do_standard_modes,  in add_standard_modes()
2758 add_cvt_modes(struct drm_connector *connector, struct edid *edid)  in add_cvt_modes()  argument
2762 		.edid = edid,  in add_cvt_modes()
2765 	if (version_greater(edid, 1, 2))  in add_cvt_modes()
2766 		drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);  in add_cvt_modes()
2783 					    closure->edid, timing,  in do_detailed_mode()
2811 add_detailed_modes(struct drm_connector *connector, struct edid *edid,  in add_detailed_modes()  argument
2816 		.edid = edid,  in add_detailed_modes()
2821 	if (closure.preferred && !version_greater(edid, 1, 3))  in add_detailed_modes()
2823 		    (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);  in add_detailed_modes()
2825 	drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);  in add_detailed_modes()
2846 static u8 *drm_find_edid_extension(const struct edid *edid, int ext_id)  in drm_find_edid_extension()  argument
2852 	if (edid == NULL || edid->extensions == 0)  in drm_find_edid_extension()
2856 	for (i = 0; i < edid->extensions; i++) {  in drm_find_edid_extension()
2857 		edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);  in drm_find_edid_extension()
2862 	if (i == edid->extensions)  in drm_find_edid_extension()
2868 static u8 *drm_find_cea_extension(const struct edid *edid)  in drm_find_cea_extension()  argument
2870 	return drm_find_edid_extension(edid, CEA_EXT);  in drm_find_cea_extension()
2873 static u8 *drm_find_displayid_extension(const struct edid *edid)  in drm_find_displayid_extension()  argument
2875 	return drm_find_edid_extension(edid, DISPLAYID_EXT);  in drm_find_displayid_extension()
3112 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_alternate_cea_modes()  argument
3120 	if (!drm_find_cea_extension(edid))  in add_alternate_cea_modes()
3713 add_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_cea_modes()  argument
3715 	const u8 *cea = drm_find_cea_extension(edid);  in add_cea_modes()
3840 static int get_monitor_name(struct edid *edid, char name[13])  in get_monitor_name()  argument
3845 	if (!edid || !name)  in get_monitor_name()
3848 	drm_for_each_detailed_block((u8 *)edid, monitor_name, &edid_name);  in get_monitor_name()
3866 void drm_edid_get_monitor_name(struct edid *edid, char *name, int bufsize)  in drm_edid_get_monitor_name()  argument
3874 	name_length = min(get_monitor_name(edid, buf), bufsize - 1);  in drm_edid_get_monitor_name()
3900 static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)  in drm_edid_to_eld()  argument
3911 	if (!edid)  in drm_edid_to_eld()
3914 	cea = drm_find_cea_extension(edid);  in drm_edid_to_eld()
3920 	mnl = get_monitor_name(edid, &eld[DRM_ELD_MONITOR_NAME_STRING]);  in drm_edid_to_eld()
3928 	eld[DRM_ELD_MANUFACTURER_NAME0] = edid->mfg_id[0];  in drm_edid_to_eld()
3929 	eld[DRM_ELD_MANUFACTURER_NAME1] = edid->mfg_id[1];  in drm_edid_to_eld()
3930 	eld[DRM_ELD_PRODUCT_CODE0] = edid->prod_code[0];  in drm_edid_to_eld()
3931 	eld[DRM_ELD_PRODUCT_CODE1] = edid->prod_code[1];  in drm_edid_to_eld()
3997 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)  in drm_edid_to_sad()  argument
4003 	cea = drm_find_cea_extension(edid);  in drm_edid_to_sad()
4058 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)  in drm_edid_to_speaker_allocation()  argument
4064 	cea = drm_find_cea_extension(edid);  in drm_edid_to_speaker_allocation()
4150 bool drm_detect_hdmi_monitor(struct edid *edid)  in drm_detect_hdmi_monitor()  argument
4156 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_hdmi_monitor()
4188 bool drm_detect_monitor_audio(struct edid *edid)  in drm_detect_monitor_audio()  argument
4195 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_monitor_audio()
4233 bool drm_rgb_quant_range_selectable(struct edid *edid)  in drm_rgb_quant_range_selectable()  argument
4238 	edid_ext = drm_find_cea_extension(edid);  in drm_rgb_quant_range_selectable()
4421 			      const struct edid *edid)  in drm_parse_cea_ext()  argument
4427 	edid_ext = drm_find_cea_extension(edid);  in drm_parse_cea_ext()
4477 u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)  in drm_add_display_info()  argument
4481 	u32 quirks = edid_get_quirks(edid);  in drm_add_display_info()
4485 	info->width_mm = edid->width_cm * 10;  in drm_add_display_info()
4486 	info->height_mm = edid->height_cm * 10;  in drm_add_display_info()
4492 	if (edid->revision < 3)  in drm_add_display_info()
4495 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))  in drm_add_display_info()
4498 	drm_parse_cea_ext(connector, edid);  in drm_add_display_info()
4507 	if ((info->bpc == 0) && (edid->revision < 4) &&  in drm_add_display_info()
4508 	    (edid->input & DRM_EDID_DIGITAL_TYPE_DVI)) {  in drm_add_display_info()
4515 	if (edid->revision < 4)  in drm_add_display_info()
4518 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {  in drm_add_display_info()
4547 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)  in drm_add_display_info()
4549 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)  in drm_add_display_info()
4649 					struct edid *edid)  in add_displayid_detailed_modes()  argument
4658 	displayid = drm_find_displayid_extension(edid);  in add_displayid_detailed_modes()
4692 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)  in drm_add_edid_modes()  argument
4697 	if (edid == NULL) {  in drm_add_edid_modes()
4701 	if (!drm_edid_is_valid(edid)) {  in drm_add_edid_modes()
4708 	drm_edid_to_eld(connector, edid);  in drm_add_edid_modes()
4715 	quirks = drm_add_display_info(connector, edid);  in drm_add_edid_modes()
4731 	num_modes += add_detailed_modes(connector, edid, quirks);  in drm_add_edid_modes()
4732 	num_modes += add_cvt_modes(connector, edid);  in drm_add_edid_modes()
4733 	num_modes += add_standard_modes(connector, edid);  in drm_add_edid_modes()
4734 	num_modes += add_established_modes(connector, edid);  in drm_add_edid_modes()
4735 	num_modes += add_cea_modes(connector, edid);  in drm_add_edid_modes()
4736 	num_modes += add_alternate_cea_modes(connector, edid);  in drm_add_edid_modes()
4737 	num_modes += add_displayid_detailed_modes(connector, edid);  in drm_add_edid_modes()
4738 	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in drm_add_edid_modes()
4739 		num_modes += add_inferred_modes(connector, edid);  in drm_add_edid_modes()
5163 			      struct edid *edid)  in drm_get_displayid()  argument
5168 	displayid = drm_find_displayid_extension(edid);  in drm_get_displayid()