47 #define version_greater(edid, maj, min) \  argument
48 	(((edid)->version > (maj)) || \
49 	 ((edid)->version == (maj) && (edid)->revision > (min)))
91 	struct edid *edid;  member
1625 bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2)  in drm_edid_are_equal()
1665 	struct edid *edid = (struct edid *)raw_edid;  in drm_edid_block_valid()  local
1716 		if (edid->version != 1) {  in drm_edid_block_valid()
1717 			DRM_NOTE("EDID has major version %d, instead of 1\n", edid->version);  in drm_edid_block_valid()
1721 		if (edid->revision > 4)  in drm_edid_block_valid()
1754 bool drm_edid_is_valid(struct edid *edid)  in drm_edid_is_valid()  argument
1757 	u8 *raw = (u8 *)edid;  in drm_edid_is_valid()
1759 	if (!edid)  in drm_edid_is_valid()
1762 	for (i = 0; i <= edid->extensions; i++)  in drm_edid_is_valid()
1835 			       u8 *edid, int num_blocks)  in connector_bad_edid()  argument
1838 	u8 num_of_ext = edid[0x7e];  in connector_bad_edid()
1842 		drm_edid_block_checksum(edid + num_of_ext * EDID_LENGTH);  in connector_bad_edid()
1849 		u8 *block = edid + i * EDID_LENGTH;  in connector_bad_edid()
1866 static struct edid *drm_get_override_edid(struct drm_connector *connector)  in drm_get_override_edid()
1868 	struct edid *override = NULL;  in drm_get_override_edid()
1892 	struct edid *override;  in drm_add_override_edid_modes()
1929 struct edid *drm_do_get_edid(struct drm_connector *connector,  in drm_do_get_edid()
1935 	u8 *edid, *new;  in drm_do_get_edid()  local
1936 	struct edid *override;  in drm_do_get_edid()
1942 	if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)  in drm_do_get_edid()
1947 		if (get_edid_block(data, edid, 0, EDID_LENGTH))  in drm_do_get_edid()
1949 		if (drm_edid_block_valid(edid, 0, false,  in drm_do_get_edid()
1952 		if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) {  in drm_do_get_edid()
1961 	valid_extensions = edid[0x7e];  in drm_do_get_edid()
1963 		return (struct edid *)edid;  in drm_do_get_edid()
1965 	new = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);  in drm_do_get_edid()
1968 	edid = new;  in drm_do_get_edid()
1970 	for (j = 1; j <= edid[0x7e]; j++) {  in drm_do_get_edid()
1971 		u8 *block = edid + j * EDID_LENGTH;  in drm_do_get_edid()
1984 	if (valid_extensions != edid[0x7e]) {  in drm_do_get_edid()
1987 		connector_bad_edid(connector, edid, edid[0x7e] + 1);  in drm_do_get_edid()
1989 		edid[EDID_LENGTH-1] += edid[0x7e] - valid_extensions;  in drm_do_get_edid()
1990 		edid[0x7e] = valid_extensions;  in drm_do_get_edid()
1998 		for (i = 0; i <= edid[0x7e]; i++) {  in drm_do_get_edid()
1999 			u8 *block = edid + i * EDID_LENGTH;  in drm_do_get_edid()
2008 		kfree(edid);  in drm_do_get_edid()
2009 		edid = new;  in drm_do_get_edid()
2012 	return (struct edid *)edid;  in drm_do_get_edid()
2015 	connector_bad_edid(connector, edid, 1);  in drm_do_get_edid()
2017 	kfree(edid);  in drm_do_get_edid()
2047 struct edid *drm_get_edid(struct drm_connector *connector,  in drm_get_edid()
2050 	struct edid *edid;  in drm_get_edid()  local
2058 	edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);  in drm_get_edid()
2059 	drm_connector_update_edid_property(connector, edid);  in drm_get_edid()
2060 	return edid;  in drm_get_edid()
2075 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,  in drm_get_edid_switcheroo()
2079 	struct edid *edid;  in drm_get_edid_switcheroo()  local
2082 	edid = drm_get_edid(connector, adapter);  in drm_get_edid_switcheroo()
2085 	return edid;  in drm_get_edid_switcheroo()
2095 struct edid *drm_edid_duplicate(const struct edid *edid)  in drm_edid_duplicate()  argument
2097 	return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);  in drm_edid_duplicate()
2110 static bool edid_vendor(const struct edid *edid, const char *vendor)  in edid_vendor()  argument
2114 	edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';  in edid_vendor()
2115 	edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |  in edid_vendor()
2116 			  ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';  in edid_vendor()
2117 	edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';  in edid_vendor()
2128 static u32 edid_get_quirks(const struct edid *edid)  in edid_get_quirks()  argument
2136 		if (edid_vendor(edid, quirk->vendor) &&  in edid_get_quirks()
2137 		    (EDID_PRODUCT_ID(edid) == quirk->product_id))  in edid_get_quirks()
2287 	struct edid *edid = (struct edid *)raw_edid;  in drm_for_each_detailed_block()  local
2289 	if (edid == NULL)  in drm_for_each_detailed_block()
2293 		cb(&(edid->detailed_timings[i]), closure);  in drm_for_each_detailed_block()
2325 drm_monitor_supports_rb(struct edid *edid)  in drm_monitor_supports_rb()  argument
2327 	if (edid->revision >= 4) {  in drm_monitor_supports_rb()
2330 		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);  in drm_monitor_supports_rb()
2334 	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);  in drm_monitor_supports_rb()
2351 drm_gtf2_hbreak(struct edid *edid)  in drm_gtf2_hbreak()  argument
2355 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_hbreak()
2360 drm_gtf2_2c(struct edid *edid)  in drm_gtf2_2c()  argument
2364 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2c()
2369 drm_gtf2_m(struct edid *edid)  in drm_gtf2_m()  argument
2373 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_m()
2378 drm_gtf2_k(struct edid *edid)  in drm_gtf2_k()  argument
2382 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_k()
2387 drm_gtf2_2j(struct edid *edid)  in drm_gtf2_2j()  argument
2391 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2j()
2399 static int standard_timing_level(struct edid *edid)  in standard_timing_level()  argument
2401 	if (edid->revision >= 2) {  in standard_timing_level()
2402 		if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))  in standard_timing_level()
2404 		if (drm_gtf2_hbreak(edid))  in standard_timing_level()
2406 		if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in standard_timing_level()
2442 drm_mode_std(struct drm_connector *connector, struct edid *edid,  in drm_mode_std()  argument
2453 	int timing_level = standard_timing_level(edid);  in drm_mode_std()
2464 		if (edid->revision < 3)  in drm_mode_std()
2507 	if (drm_monitor_supports_rb(edid)) {  in drm_mode_std()
2533 		if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {  in drm_mode_std()
2537 						    drm_gtf2_m(edid),  in drm_mode_std()
2538 						    drm_gtf2_2c(edid),  in drm_mode_std()
2539 						    drm_gtf2_k(edid),  in drm_mode_std()
2540 						    drm_gtf2_2j(edid));  in drm_mode_std()
2604 						  struct edid *edid,  in drm_mode_detailed()  argument
2692 		mode->width_mm = edid->width_cm * 10;  in drm_mode_detailed()
2693 		mode->height_mm = edid->height_cm * 10;  in drm_mode_detailed()
2704 		    struct edid *edid, u8 *t)  in mode_in_hsync_range()  argument
2709 	if (edid->revision >= 4)  in mode_in_hsync_range()
2712 	if (edid->revision >= 4)  in mode_in_hsync_range()
2721 		    struct edid *edid, u8 *t)  in mode_in_vsync_range()  argument
2726 	if (edid->revision >= 4)  in mode_in_vsync_range()
2729 	if (edid->revision >= 4)  in mode_in_vsync_range()
2737 range_pixel_clock(struct edid *edid, u8 *t)  in range_pixel_clock()  argument
2744 	if (edid->revision >= 4 && t[10] == 0x04)  in range_pixel_clock()
2752 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,  in mode_in_range()  argument
2758 	if (!mode_in_hsync_range(mode, edid, t))  in mode_in_range()
2761 	if (!mode_in_vsync_range(mode, edid, t))  in mode_in_range()
2764 	if ((max_clock = range_pixel_clock(edid, t)))  in mode_in_range()
2769 	if (edid->revision >= 4 && t[10] == 0x04)  in mode_in_range()
2773 	if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))  in mode_in_range()
2798 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_dmt_modes_for_range()  argument
2806 		if (mode_in_range(drm_dmt_modes + i, edid, timing) &&  in drm_dmt_modes_for_range()
2833 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_gtf_modes_for_range()  argument
2848 		if (!mode_in_range(newmode, edid, timing) ||  in drm_gtf_modes_for_range()
2862 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_cvt_modes_for_range()  argument
2868 	bool rb = drm_monitor_supports_rb(edid);  in drm_cvt_modes_for_range()
2878 		if (!mode_in_range(newmode, edid, timing) ||  in drm_cvt_modes_for_range()
2902 						  closure->edid,  in do_inferred_modes()
2905 	if (!version_greater(closure->edid, 1, 1))  in do_inferred_modes()
2912 							  closure->edid,  in do_inferred_modes()
2916 		if (!version_greater(closure->edid, 1, 3))  in do_inferred_modes()
2920 							  closure->edid,  in do_inferred_modes()
2930 add_inferred_modes(struct drm_connector *connector, struct edid *edid)  in add_inferred_modes()  argument
2934 		.edid = edid,  in add_inferred_modes()
2937 	if (version_greater(edid, 1, 0))  in add_inferred_modes()
2938 		drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,  in add_inferred_modes()
2993 add_established_modes(struct drm_connector *connector, struct edid *edid)  in add_established_modes()  argument
2996 	unsigned long est_bits = edid->established_timings.t1 |  in add_established_modes()
2997 		(edid->established_timings.t2 << 8) |  in add_established_modes()
2998 		((edid->established_timings.mfg_rsvd & 0x80) << 9);  in add_established_modes()
3002 		.edid = edid,  in add_established_modes()
3017 	if (version_greater(edid, 1, 0))  in add_established_modes()
3018 		    drm_for_each_detailed_block((u8 *)edid,  in add_established_modes()
3030 	struct edid *edid = closure->edid;  in do_standard_modes()  local
3040 		newmode = drm_mode_std(connector, edid, std);  in do_standard_modes()
3057 add_standard_modes(struct drm_connector *connector, struct edid *edid)  in add_standard_modes()  argument
3062 		.edid = edid,  in add_standard_modes()
3068 		newmode = drm_mode_std(connector, edid,  in add_standard_modes()
3069 				       &edid->standard_timings[i]);  in add_standard_modes()
3076 	if (version_greater(edid, 1, 0))  in add_standard_modes()
3077 		drm_for_each_detailed_block((u8 *)edid, do_standard_modes,  in add_standard_modes()
3147 add_cvt_modes(struct drm_connector *connector, struct edid *edid)  in add_cvt_modes()  argument
3151 		.edid = edid,  in add_cvt_modes()
3154 	if (version_greater(edid, 1, 2))  in add_cvt_modes()
3155 		drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);  in add_cvt_modes()
3174 				    closure->edid, timing,  in do_detailed_mode()
3201 add_detailed_modes(struct drm_connector *connector, struct edid *edid,  in add_detailed_modes()  argument
3206 		.edid = edid,  in add_detailed_modes()
3211 	if (closure.preferred && !version_greater(edid, 1, 3))  in add_detailed_modes()
3213 		    (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);  in add_detailed_modes()
3215 	drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);  in add_detailed_modes()
3237 static u8 *drm_find_edid_extension(const struct edid *edid,  in drm_find_edid_extension()  argument
3244 	if (edid == NULL || edid->extensions == 0)  in drm_find_edid_extension()
3248 	for (i = *ext_index; i < edid->extensions; i++) {  in drm_find_edid_extension()
3249 		edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);  in drm_find_edid_extension()
3254 	if (i >= edid->extensions)  in drm_find_edid_extension()
3263 static u8 *drm_find_displayid_extension(const struct edid *edid,  in drm_find_displayid_extension()  argument
3267 	u8 *displayid = drm_find_edid_extension(edid, DISPLAYID_EXT, ext_index);  in drm_find_displayid_extension()
3288 static u8 *drm_find_cea_extension(const struct edid *edid)  in drm_find_cea_extension()  argument
3299 	cea = drm_find_edid_extension(edid, CEA_EXT, &ext_index);  in drm_find_cea_extension()
3306 		displayid = drm_find_displayid_extension(edid, &length, &idx,  in drm_find_cea_extension()
3580 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_alternate_cea_modes()  argument
3588 	if (!drm_find_cea_extension(edid))  in add_alternate_cea_modes()
4258 add_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_cea_modes()  argument
4260 	const u8 *cea = drm_find_cea_extension(edid);  in add_cea_modes()
4436 static int get_monitor_name(struct edid *edid, char name[13])  in get_monitor_name()  argument
4441 	if (!edid || !name)  in get_monitor_name()
4444 	drm_for_each_detailed_block((u8 *)edid, monitor_name, &edid_name);  in get_monitor_name()
4462 void drm_edid_get_monitor_name(struct edid *edid, char *name, int bufsize)  in drm_edid_get_monitor_name()  argument
4470 	name_length = min(get_monitor_name(edid, buf), bufsize - 1);  in drm_edid_get_monitor_name()
4496 static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)  in drm_edid_to_eld()  argument
4507 	if (!edid)  in drm_edid_to_eld()
4510 	cea = drm_find_cea_extension(edid);  in drm_edid_to_eld()
4516 	mnl = get_monitor_name(edid, &eld[DRM_ELD_MONITOR_NAME_STRING]);  in drm_edid_to_eld()
4524 	eld[DRM_ELD_MANUFACTURER_NAME0] = edid->mfg_id[0];  in drm_edid_to_eld()
4525 	eld[DRM_ELD_MANUFACTURER_NAME1] = edid->mfg_id[1];  in drm_edid_to_eld()
4526 	eld[DRM_ELD_PRODUCT_CODE0] = edid->prod_code[0];  in drm_edid_to_eld()
4527 	eld[DRM_ELD_PRODUCT_CODE1] = edid->prod_code[1];  in drm_edid_to_eld()
4592 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)  in drm_edid_to_sad()  argument
4598 	cea = drm_find_cea_extension(edid);  in drm_edid_to_sad()
4654 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)  in drm_edid_to_speaker_allocation()  argument
4660 	cea = drm_find_cea_extension(edid);  in drm_edid_to_speaker_allocation()
4749 bool drm_detect_hdmi_monitor(struct edid *edid)  in drm_detect_hdmi_monitor()  argument
4755 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_hdmi_monitor()
4787 bool drm_detect_monitor_audio(struct edid *edid)  in drm_detect_monitor_audio()  argument
4794 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_monitor_audio()
4997 			      const struct edid *edid)  in drm_parse_cea_ext()  argument
5003 	edid_ext = drm_find_cea_extension(edid);  in drm_parse_cea_ext()
5061 			   const struct edid *edid)  in drm_get_monitor_range()  argument
5065 	if (!version_greater(edid, 1, 1))  in drm_get_monitor_range()
5068 	drm_for_each_detailed_block((u8 *)edid, get_monitor_range,  in drm_get_monitor_range()
5101 u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)  in drm_add_display_info()  argument
5105 	u32 quirks = edid_get_quirks(edid);  in drm_add_display_info()
5109 	info->width_mm = edid->width_cm * 10;  in drm_add_display_info()
5110 	info->height_mm = edid->height_cm * 10;  in drm_add_display_info()
5114 	drm_get_monitor_range(connector, edid);  in drm_add_display_info()
5118 	if (edid->revision < 3)  in drm_add_display_info()
5121 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))  in drm_add_display_info()
5124 	drm_parse_cea_ext(connector, edid);  in drm_add_display_info()
5133 	if (info->bpc == 0 && edid->revision == 3 &&  in drm_add_display_info()
5134 	    edid->input & DRM_EDID_DIGITAL_DFP_1_X) {  in drm_add_display_info()
5141 	if (edid->revision < 4)  in drm_add_display_info()
5144 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {  in drm_add_display_info()
5173 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)  in drm_add_display_info()
5175 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)  in drm_add_display_info()
5278 					struct edid *edid)  in add_displayid_detailed_modes()  argument
5287 		displayid = drm_find_displayid_extension(edid, &length, &idx,  in add_displayid_detailed_modes()
5316 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)  in drm_add_edid_modes()  argument
5321 	if (edid == NULL) {  in drm_add_edid_modes()
5325 	if (!drm_edid_is_valid(edid)) {  in drm_add_edid_modes()
5332 	drm_edid_to_eld(connector, edid);  in drm_add_edid_modes()
5339 	quirks = drm_add_display_info(connector, edid);  in drm_add_edid_modes()
5355 	num_modes += add_detailed_modes(connector, edid, quirks);  in drm_add_edid_modes()
5356 	num_modes += add_cvt_modes(connector, edid);  in drm_add_edid_modes()
5357 	num_modes += add_standard_modes(connector, edid);  in drm_add_edid_modes()
5358 	num_modes += add_established_modes(connector, edid);  in drm_add_edid_modes()
5359 	num_modes += add_cea_modes(connector, edid);  in drm_add_edid_modes()
5360 	num_modes += add_alternate_cea_modes(connector, edid);  in drm_add_edid_modes()
5361 	num_modes += add_displayid_detailed_modes(connector, edid);  in drm_add_edid_modes()
5362 	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in drm_add_edid_modes()
5363 		num_modes += add_inferred_modes(connector, edid);  in drm_add_edid_modes()
5956 			  const struct edid *edid)  in drm_update_tile_info()  argument
5964 		displayid = drm_find_displayid_extension(edid, &length, &idx,  in drm_update_tile_info()