48 #define version_greater(edid, maj, min) \  argument
49 	(((edid)->version > (maj)) || \
50 	 ((edid)->version == (maj) && (edid)->revision > (min)))
92 	struct edid *edid;  member
1624 bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2)  in drm_edid_are_equal()
1664 	struct edid *edid = (struct edid *)raw_edid;  in drm_edid_block_valid()  local
1715 		if (edid->version != 1) {  in drm_edid_block_valid()
1716 			DRM_NOTE("EDID has major version %d, instead of 1\n", edid->version);  in drm_edid_block_valid()
1720 		if (edid->revision > 4)  in drm_edid_block_valid()
1753 bool drm_edid_is_valid(struct edid *edid)  in drm_edid_is_valid()  argument
1756 	u8 *raw = (u8 *)edid;  in drm_edid_is_valid()
1758 	if (!edid)  in drm_edid_is_valid()
1761 	for (i = 0; i <= edid->extensions; i++)  in drm_edid_is_valid()
1834 			       u8 *edid, int num_blocks)  in connector_bad_edid()  argument
1845 	last_block = edid[0x7e];  in connector_bad_edid()
1850 			drm_edid_block_checksum(edid + last_block * EDID_LENGTH);  in connector_bad_edid()
1857 		u8 *block = edid + i * EDID_LENGTH;  in connector_bad_edid()
1874 static struct edid *drm_get_override_edid(struct drm_connector *connector)  in drm_get_override_edid()
1876 	struct edid *override = NULL;  in drm_get_override_edid()
1900 	struct edid *override;  in drm_add_override_edid_modes()
1937 struct edid *drm_do_get_edid(struct drm_connector *connector,  in drm_do_get_edid()
1943 	u8 *edid, *new;  in drm_do_get_edid()  local
1944 	struct edid *override;  in drm_do_get_edid()
1950 	if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)  in drm_do_get_edid()
1955 		if (get_edid_block(data, edid, 0, EDID_LENGTH))  in drm_do_get_edid()
1957 		if (drm_edid_block_valid(edid, 0, false,  in drm_do_get_edid()
1960 		if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) {  in drm_do_get_edid()
1969 	valid_extensions = edid[0x7e];  in drm_do_get_edid()
1971 		return (struct edid *)edid;  in drm_do_get_edid()
1973 	new = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);  in drm_do_get_edid()
1976 	edid = new;  in drm_do_get_edid()
1978 	for (j = 1; j <= edid[0x7e]; j++) {  in drm_do_get_edid()
1979 		u8 *block = edid + j * EDID_LENGTH;  in drm_do_get_edid()
1992 	if (valid_extensions != edid[0x7e]) {  in drm_do_get_edid()
1995 		connector_bad_edid(connector, edid, edid[0x7e] + 1);  in drm_do_get_edid()
1997 		edid[EDID_LENGTH-1] += edid[0x7e] - valid_extensions;  in drm_do_get_edid()
1998 		edid[0x7e] = valid_extensions;  in drm_do_get_edid()
2006 		for (i = 0; i <= edid[0x7e]; i++) {  in drm_do_get_edid()
2007 			u8 *block = edid + i * EDID_LENGTH;  in drm_do_get_edid()
2016 		kfree(edid);  in drm_do_get_edid()
2017 		edid = new;  in drm_do_get_edid()
2020 	return (struct edid *)edid;  in drm_do_get_edid()
2023 	connector_bad_edid(connector, edid, 1);  in drm_do_get_edid()
2025 	kfree(edid);  in drm_do_get_edid()
2055 struct edid *drm_get_edid(struct drm_connector *connector,  in drm_get_edid()
2058 	struct edid *edid;  in drm_get_edid()  local
2066 	edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);  in drm_get_edid()
2067 	drm_connector_update_edid_property(connector, edid);  in drm_get_edid()
2068 	return edid;  in drm_get_edid()
2083 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,  in drm_get_edid_switcheroo()
2088 	struct edid *edid;  in drm_get_edid_switcheroo()  local
2094 	edid = drm_get_edid(connector, adapter);  in drm_get_edid_switcheroo()
2097 	return edid;  in drm_get_edid_switcheroo()
2107 struct edid *drm_edid_duplicate(const struct edid *edid)  in drm_edid_duplicate()  argument
2109 	return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);  in drm_edid_duplicate()
2122 static bool edid_vendor(const struct edid *edid, const char *vendor)  in edid_vendor()  argument
2126 	edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';  in edid_vendor()
2127 	edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |  in edid_vendor()
2128 			  ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';  in edid_vendor()
2129 	edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';  in edid_vendor()
2140 static u32 edid_get_quirks(const struct edid *edid)  in edid_get_quirks()  argument
2148 		if (edid_vendor(edid, quirk->vendor) &&  in edid_get_quirks()
2149 		    (EDID_PRODUCT_ID(edid) == quirk->product_id))  in edid_get_quirks()
2299 	struct edid *edid = (struct edid *)raw_edid;  in drm_for_each_detailed_block()  local
2301 	if (edid == NULL)  in drm_for_each_detailed_block()
2305 		cb(&(edid->detailed_timings[i]), closure);  in drm_for_each_detailed_block()
2337 drm_monitor_supports_rb(struct edid *edid)  in drm_monitor_supports_rb()  argument
2339 	if (edid->revision >= 4) {  in drm_monitor_supports_rb()
2342 		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);  in drm_monitor_supports_rb()
2346 	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);  in drm_monitor_supports_rb()
2363 drm_gtf2_hbreak(struct edid *edid)  in drm_gtf2_hbreak()  argument
2367 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_hbreak()
2372 drm_gtf2_2c(struct edid *edid)  in drm_gtf2_2c()  argument
2376 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2c()
2381 drm_gtf2_m(struct edid *edid)  in drm_gtf2_m()  argument
2385 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_m()
2390 drm_gtf2_k(struct edid *edid)  in drm_gtf2_k()  argument
2394 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_k()
2399 drm_gtf2_2j(struct edid *edid)  in drm_gtf2_2j()  argument
2403 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2j()
2411 static int standard_timing_level(struct edid *edid)  in standard_timing_level()  argument
2413 	if (edid->revision >= 2) {  in standard_timing_level()
2414 		if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))  in standard_timing_level()
2416 		if (drm_gtf2_hbreak(edid))  in standard_timing_level()
2418 		if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in standard_timing_level()
2454 drm_mode_std(struct drm_connector *connector, struct edid *edid,  in drm_mode_std()  argument
2465 	int timing_level = standard_timing_level(edid);  in drm_mode_std()
2476 		if (edid->revision < 3)  in drm_mode_std()
2519 	if (drm_monitor_supports_rb(edid)) {  in drm_mode_std()
2545 		if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {  in drm_mode_std()
2549 						    drm_gtf2_m(edid),  in drm_mode_std()
2550 						    drm_gtf2_2c(edid),  in drm_mode_std()
2551 						    drm_gtf2_k(edid),  in drm_mode_std()
2552 						    drm_gtf2_2j(edid));  in drm_mode_std()
2616 						  struct edid *edid,  in drm_mode_detailed()  argument
2704 		mode->width_mm = edid->width_cm * 10;  in drm_mode_detailed()
2705 		mode->height_mm = edid->height_cm * 10;  in drm_mode_detailed()
2716 		    struct edid *edid, u8 *t)  in mode_in_hsync_range()  argument
2721 	if (edid->revision >= 4)  in mode_in_hsync_range()
2724 	if (edid->revision >= 4)  in mode_in_hsync_range()
2733 		    struct edid *edid, u8 *t)  in mode_in_vsync_range()  argument
2738 	if (edid->revision >= 4)  in mode_in_vsync_range()
2741 	if (edid->revision >= 4)  in mode_in_vsync_range()
2749 range_pixel_clock(struct edid *edid, u8 *t)  in range_pixel_clock()  argument
2756 	if (edid->revision >= 4 && t[10] == 0x04)  in range_pixel_clock()
2764 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,  in mode_in_range()  argument
2770 	if (!mode_in_hsync_range(mode, edid, t))  in mode_in_range()
2773 	if (!mode_in_vsync_range(mode, edid, t))  in mode_in_range()
2776 	if ((max_clock = range_pixel_clock(edid, t)))  in mode_in_range()
2781 	if (edid->revision >= 4 && t[10] == 0x04)  in mode_in_range()
2785 	if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))  in mode_in_range()
2810 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_dmt_modes_for_range()  argument
2818 		if (mode_in_range(drm_dmt_modes + i, edid, timing) &&  in drm_dmt_modes_for_range()
2845 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_gtf_modes_for_range()  argument
2860 		if (!mode_in_range(newmode, edid, timing) ||  in drm_gtf_modes_for_range()
2874 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_cvt_modes_for_range()  argument
2880 	bool rb = drm_monitor_supports_rb(edid);  in drm_cvt_modes_for_range()
2890 		if (!mode_in_range(newmode, edid, timing) ||  in drm_cvt_modes_for_range()
2914 						  closure->edid,  in do_inferred_modes()
2917 	if (!version_greater(closure->edid, 1, 1))  in do_inferred_modes()
2924 							  closure->edid,  in do_inferred_modes()
2928 		if (!version_greater(closure->edid, 1, 3))  in do_inferred_modes()
2932 							  closure->edid,  in do_inferred_modes()
2942 add_inferred_modes(struct drm_connector *connector, struct edid *edid)  in add_inferred_modes()  argument
2946 		.edid = edid,  in add_inferred_modes()
2949 	if (version_greater(edid, 1, 0))  in add_inferred_modes()
2950 		drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,  in add_inferred_modes()
3005 add_established_modes(struct drm_connector *connector, struct edid *edid)  in add_established_modes()  argument
3008 	unsigned long est_bits = edid->established_timings.t1 |  in add_established_modes()
3009 		(edid->established_timings.t2 << 8) |  in add_established_modes()
3010 		((edid->established_timings.mfg_rsvd & 0x80) << 9);  in add_established_modes()
3014 		.edid = edid,  in add_established_modes()
3029 	if (version_greater(edid, 1, 0))  in add_established_modes()
3030 		    drm_for_each_detailed_block((u8 *)edid,  in add_established_modes()
3042 	struct edid *edid = closure->edid;  in do_standard_modes()  local
3052 		newmode = drm_mode_std(connector, edid, std);  in do_standard_modes()
3069 add_standard_modes(struct drm_connector *connector, struct edid *edid)  in add_standard_modes()  argument
3074 		.edid = edid,  in add_standard_modes()
3080 		newmode = drm_mode_std(connector, edid,  in add_standard_modes()
3081 				       &edid->standard_timings[i]);  in add_standard_modes()
3088 	if (version_greater(edid, 1, 0))  in add_standard_modes()
3089 		drm_for_each_detailed_block((u8 *)edid, do_standard_modes,  in add_standard_modes()
3161 add_cvt_modes(struct drm_connector *connector, struct edid *edid)  in add_cvt_modes()  argument
3165 		.edid = edid,  in add_cvt_modes()
3168 	if (version_greater(edid, 1, 2))  in add_cvt_modes()
3169 		drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);  in add_cvt_modes()
3188 				    closure->edid, timing,  in do_detailed_mode()
3215 add_detailed_modes(struct drm_connector *connector, struct edid *edid,  in add_detailed_modes()  argument
3220 		.edid = edid,  in add_detailed_modes()
3225 	if (closure.preferred && !version_greater(edid, 1, 3))  in add_detailed_modes()
3227 		    (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);  in add_detailed_modes()
3229 	drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);  in add_detailed_modes()
3251 const u8 *drm_find_edid_extension(const struct edid *edid,  in drm_find_edid_extension()  argument
3258 	if (edid == NULL || edid->extensions == 0)  in drm_find_edid_extension()
3262 	for (i = *ext_index; i < edid->extensions; i++) {  in drm_find_edid_extension()
3263 		edid_ext = (const u8 *)edid + EDID_LENGTH * (i + 1);  in drm_find_edid_extension()
3268 	if (i >= edid->extensions)  in drm_find_edid_extension()
3276 static const u8 *drm_find_cea_extension(const struct edid *edid)  in drm_find_cea_extension()  argument
3285 	cea = drm_find_edid_extension(edid, CEA_EXT, &ext_index);  in drm_find_cea_extension()
3290 	displayid_iter_edid_begin(edid, &iter);  in drm_find_cea_extension()
3561 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_alternate_cea_modes()  argument
3569 	if (!drm_find_cea_extension(edid))  in add_alternate_cea_modes()
4239 add_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_cea_modes()  argument
4241 	const u8 *cea = drm_find_cea_extension(edid);  in add_cea_modes()
4417 static int get_monitor_name(struct edid *edid, char name[13])  in get_monitor_name()  argument
4422 	if (!edid || !name)  in get_monitor_name()
4425 	drm_for_each_detailed_block((u8 *)edid, monitor_name, &edid_name);  in get_monitor_name()
4443 void drm_edid_get_monitor_name(struct edid *edid, char *name, int bufsize)  in drm_edid_get_monitor_name()  argument
4451 	name_length = min(get_monitor_name(edid, buf), bufsize - 1);  in drm_edid_get_monitor_name()
4477 static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)  in drm_edid_to_eld()  argument
4488 	if (!edid)  in drm_edid_to_eld()
4491 	cea = drm_find_cea_extension(edid);  in drm_edid_to_eld()
4497 	mnl = get_monitor_name(edid, &eld[DRM_ELD_MONITOR_NAME_STRING]);  in drm_edid_to_eld()
4505 	eld[DRM_ELD_MANUFACTURER_NAME0] = edid->mfg_id[0];  in drm_edid_to_eld()
4506 	eld[DRM_ELD_MANUFACTURER_NAME1] = edid->mfg_id[1];  in drm_edid_to_eld()
4507 	eld[DRM_ELD_PRODUCT_CODE0] = edid->prod_code[0];  in drm_edid_to_eld()
4508 	eld[DRM_ELD_PRODUCT_CODE1] = edid->prod_code[1];  in drm_edid_to_eld()
4573 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)  in drm_edid_to_sad()  argument
4579 	cea = drm_find_cea_extension(edid);  in drm_edid_to_sad()
4635 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)  in drm_edid_to_speaker_allocation()  argument
4641 	cea = drm_find_cea_extension(edid);  in drm_edid_to_speaker_allocation()
4730 bool drm_detect_hdmi_monitor(struct edid *edid)  in drm_detect_hdmi_monitor()  argument
4736 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_hdmi_monitor()
4768 bool drm_detect_monitor_audio(struct edid *edid)  in drm_detect_monitor_audio()  argument
4775 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_monitor_audio()
5081 			      const struct edid *edid)  in drm_parse_cea_ext()  argument
5087 	edid_ext = drm_find_cea_extension(edid);  in drm_parse_cea_ext()
5145 			   const struct edid *edid)  in drm_get_monitor_range()  argument
5149 	if (!version_greater(edid, 1, 1))  in drm_get_monitor_range()
5152 	drm_for_each_detailed_block((u8 *)edid, get_monitor_range,  in drm_get_monitor_range()
5185 u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)  in drm_add_display_info()  argument
5189 	u32 quirks = edid_get_quirks(edid);  in drm_add_display_info()
5193 	info->width_mm = edid->width_cm * 10;  in drm_add_display_info()
5194 	info->height_mm = edid->height_cm * 10;  in drm_add_display_info()
5198 	drm_get_monitor_range(connector, edid);  in drm_add_display_info()
5202 	if (edid->revision < 3)  in drm_add_display_info()
5205 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))  in drm_add_display_info()
5208 	drm_parse_cea_ext(connector, edid);  in drm_add_display_info()
5217 	if (info->bpc == 0 && edid->revision == 3 &&  in drm_add_display_info()
5218 	    edid->input & DRM_EDID_DIGITAL_DFP_1_X) {  in drm_add_display_info()
5225 	if (edid->revision < 4)  in drm_add_display_info()
5228 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {  in drm_add_display_info()
5257 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)  in drm_add_display_info()
5259 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)  in drm_add_display_info()
5336 					struct edid *edid)  in add_displayid_detailed_modes()  argument
5342 	displayid_iter_edid_begin(edid, &iter);  in add_displayid_detailed_modes()
5363 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)  in drm_add_edid_modes()  argument
5368 	if (edid == NULL) {  in drm_add_edid_modes()
5372 	if (!drm_edid_is_valid(edid)) {  in drm_add_edid_modes()
5379 	drm_edid_to_eld(connector, edid);  in drm_add_edid_modes()
5386 	quirks = drm_add_display_info(connector, edid);  in drm_add_edid_modes()
5402 	num_modes += add_detailed_modes(connector, edid, quirks);  in drm_add_edid_modes()
5403 	num_modes += add_cvt_modes(connector, edid);  in drm_add_edid_modes()
5404 	num_modes += add_standard_modes(connector, edid);  in drm_add_edid_modes()
5405 	num_modes += add_established_modes(connector, edid);  in drm_add_edid_modes()
5406 	num_modes += add_cea_modes(connector, edid);  in drm_add_edid_modes()
5407 	num_modes += add_alternate_cea_modes(connector, edid);  in drm_add_edid_modes()
5408 	num_modes += add_displayid_detailed_modes(connector, edid);  in drm_add_edid_modes()
5409 	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in drm_add_edid_modes()
5410 		num_modes += add_inferred_modes(connector, edid);  in drm_add_edid_modes()
5982 			  const struct edid *edid)  in drm_update_tile_info()  argument
5989 	displayid_iter_edid_begin(edid, &iter);  in drm_update_tile_info()