39 #define version_greater(edid, maj, min) \  argument
40 	(((edid)->version > (maj)) || \
41 	 ((edid)->version == (maj) && (edid)->revision > (min)))
79 	struct edid *edid;  member
1019 			      struct edid *edid);
1053 	struct edid *edid = (struct edid *)raw_edid;  in drm_edid_block_valid()  local
1086 		if (edid->version != 1) {  in drm_edid_block_valid()
1087 			DRM_ERROR("EDID has major version %d, instead of 1\n", edid->version);  in drm_edid_block_valid()
1091 		if (edid->revision > 4)  in drm_edid_block_valid()
1123 bool drm_edid_is_valid(struct edid *edid)  in drm_edid_is_valid()  argument
1126 	u8 *raw = (u8 *)edid;  in drm_edid_is_valid()
1128 	if (!edid)  in drm_edid_is_valid()
1131 	for (i = 0; i <= edid->extensions; i++)  in drm_edid_is_valid()
1219 struct edid *drm_do_get_edid(struct drm_connector *connector,  in drm_do_get_edid()
1247 		return (struct edid *)block;  in drm_do_get_edid()
1284 	return (struct edid *)block;  in drm_do_get_edid()
1324 struct edid *drm_get_edid(struct drm_connector *connector,  in drm_get_edid()
1327 	struct edid *edid;  in drm_get_edid()  local
1332 	edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);  in drm_get_edid()
1333 	if (edid)  in drm_get_edid()
1334 		drm_get_displayid(connector, edid);  in drm_get_edid()
1335 	return edid;  in drm_get_edid()
1345 struct edid *drm_edid_duplicate(const struct edid *edid)  in drm_edid_duplicate()  argument
1347 	return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);  in drm_edid_duplicate()
1360 static bool edid_vendor(struct edid *edid, char *vendor)  in edid_vendor()  argument
1364 	edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';  in edid_vendor()
1365 	edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |  in edid_vendor()
1366 			  ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';  in edid_vendor()
1367 	edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';  in edid_vendor()
1378 static u32 edid_get_quirks(struct edid *edid)  in edid_get_quirks()  argument
1386 		if (edid_vendor(edid, quirk->vendor) &&  in edid_get_quirks()
1387 		    (EDID_PRODUCT_ID(edid) == quirk->product_id))  in edid_get_quirks()
1524 	struct edid *edid = (struct edid *)raw_edid;  in drm_for_each_detailed_block()  local
1526 	if (edid == NULL)  in drm_for_each_detailed_block()
1530 		cb(&(edid->detailed_timings[i]), closure);  in drm_for_each_detailed_block()
1558 drm_monitor_supports_rb(struct edid *edid)  in drm_monitor_supports_rb()  argument
1560 	if (edid->revision >= 4) {  in drm_monitor_supports_rb()
1562 		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);  in drm_monitor_supports_rb()
1566 	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);  in drm_monitor_supports_rb()
1579 drm_gtf2_hbreak(struct edid *edid)  in drm_gtf2_hbreak()  argument
1582 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_hbreak()
1587 drm_gtf2_2c(struct edid *edid)  in drm_gtf2_2c()  argument
1590 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2c()
1595 drm_gtf2_m(struct edid *edid)  in drm_gtf2_m()  argument
1598 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_m()
1603 drm_gtf2_k(struct edid *edid)  in drm_gtf2_k()  argument
1606 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_k()
1611 drm_gtf2_2j(struct edid *edid)  in drm_gtf2_2j()  argument
1614 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2j()
1622 static int standard_timing_level(struct edid *edid)  in standard_timing_level()  argument
1624 	if (edid->revision >= 2) {  in standard_timing_level()
1625 		if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))  in standard_timing_level()
1627 		if (drm_gtf2_hbreak(edid))  in standard_timing_level()
1656 drm_mode_std(struct drm_connector *connector, struct edid *edid,  in drm_mode_std()  argument
1667 	int timing_level = standard_timing_level(edid);  in drm_mode_std()
1678 		if (edid->revision < 3)  in drm_mode_std()
1719 	if (drm_monitor_supports_rb(edid)) {  in drm_mode_std()
1745 		if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {  in drm_mode_std()
1749 						    drm_gtf2_m(edid),  in drm_mode_std()
1750 						    drm_gtf2_2c(edid),  in drm_mode_std()
1751 						    drm_gtf2_k(edid),  in drm_mode_std()
1752 						    drm_gtf2_2j(edid));  in drm_mode_std()
1816 						  struct edid *edid,  in drm_mode_detailed()  argument
1904 		mode->width_mm = edid->width_cm * 10;  in drm_mode_detailed()
1905 		mode->height_mm = edid->height_cm * 10;  in drm_mode_detailed()
1917 		    struct edid *edid, u8 *t)  in mode_in_hsync_range()  argument
1922 	if (edid->revision >= 4)  in mode_in_hsync_range()
1925 	if (edid->revision >= 4)  in mode_in_hsync_range()
1934 		    struct edid *edid, u8 *t)  in mode_in_vsync_range()  argument
1939 	if (edid->revision >= 4)  in mode_in_vsync_range()
1942 	if (edid->revision >= 4)  in mode_in_vsync_range()
1950 range_pixel_clock(struct edid *edid, u8 *t)  in range_pixel_clock()  argument
1957 	if (edid->revision >= 4 && t[10] == 0x04)  in range_pixel_clock()
1965 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,  in mode_in_range()  argument
1971 	if (!mode_in_hsync_range(mode, edid, t))  in mode_in_range()
1974 	if (!mode_in_vsync_range(mode, edid, t))  in mode_in_range()
1977 	if ((max_clock = range_pixel_clock(edid, t)))  in mode_in_range()
1982 	if (edid->revision >= 4 && t[10] == 0x04)  in mode_in_range()
1986 	if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))  in mode_in_range()
2011 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_dmt_modes_for_range()  argument
2019 		if (mode_in_range(drm_dmt_modes + i, edid, timing) &&  in drm_dmt_modes_for_range()
2046 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_gtf_modes_for_range()  argument
2060 		if (!mode_in_range(newmode, edid, timing) ||  in drm_gtf_modes_for_range()
2074 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,  in drm_cvt_modes_for_range()  argument
2080 	bool rb = drm_monitor_supports_rb(edid);  in drm_cvt_modes_for_range()
2089 		if (!mode_in_range(newmode, edid, timing) ||  in drm_cvt_modes_for_range()
2113 						  closure->edid,  in do_inferred_modes()
2116 	if (!version_greater(closure->edid, 1, 1))  in do_inferred_modes()
2123 							  closure->edid,  in do_inferred_modes()
2127 		if (!version_greater(closure->edid, 1, 3))  in do_inferred_modes()
2131 							  closure->edid,  in do_inferred_modes()
2141 add_inferred_modes(struct drm_connector *connector, struct edid *edid)  in add_inferred_modes()  argument
2145 		.edid = edid,  in add_inferred_modes()
2148 	if (version_greater(edid, 1, 0))  in add_inferred_modes()
2149 		drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,  in add_inferred_modes()
2203 add_established_modes(struct drm_connector *connector, struct edid *edid)  in add_established_modes()  argument
2206 	unsigned long est_bits = edid->established_timings.t1 |  in add_established_modes()
2207 		(edid->established_timings.t2 << 8) |  in add_established_modes()
2208 		((edid->established_timings.mfg_rsvd & 0x80) << 9);  in add_established_modes()
2212 		.edid = edid,  in add_established_modes()
2226 	if (version_greater(edid, 1, 0))  in add_established_modes()
2227 		    drm_for_each_detailed_block((u8 *)edid,  in add_established_modes()
2239 	struct edid *edid = closure->edid;  in do_standard_modes()  local
2248 			newmode = drm_mode_std(connector, edid, std);  in do_standard_modes()
2266 add_standard_modes(struct drm_connector *connector, struct edid *edid)  in add_standard_modes()  argument
2271 		.edid = edid,  in add_standard_modes()
2277 		newmode = drm_mode_std(connector, edid,  in add_standard_modes()
2278 				       &edid->standard_timings[i]);  in add_standard_modes()
2285 	if (version_greater(edid, 1, 0))  in add_standard_modes()
2286 		drm_for_each_detailed_block((u8 *)edid, do_standard_modes,  in add_standard_modes()
2354 add_cvt_modes(struct drm_connector *connector, struct edid *edid)  in add_cvt_modes()  argument
2358 		.edid = edid,  in add_cvt_modes()
2361 	if (version_greater(edid, 1, 2))  in add_cvt_modes()
2362 		drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);  in add_cvt_modes()
2377 					    closure->edid, timing,  in do_detailed_mode()
2398 add_detailed_modes(struct drm_connector *connector, struct edid *edid,  in add_detailed_modes()  argument
2403 		.edid = edid,  in add_detailed_modes()
2408 	if (closure.preferred && !version_greater(edid, 1, 3))  in add_detailed_modes()
2410 		    (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);  in add_detailed_modes()
2412 	drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);  in add_detailed_modes()
2430 static u8 *drm_find_edid_extension(struct edid *edid, int ext_id)  in drm_find_edid_extension()  argument
2436 	if (edid == NULL || edid->extensions == 0)  in drm_find_edid_extension()
2440 	for (i = 0; i < edid->extensions; i++) {  in drm_find_edid_extension()
2441 		edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);  in drm_find_edid_extension()
2446 	if (i == edid->extensions)  in drm_find_edid_extension()
2452 static u8 *drm_find_cea_extension(struct edid *edid)  in drm_find_cea_extension()  argument
2454 	return drm_find_edid_extension(edid, CEA_EXT);  in drm_find_cea_extension()
2457 static u8 *drm_find_displayid_extension(struct edid *edid)  in drm_find_displayid_extension()  argument
2459 	return drm_find_edid_extension(edid, DISPLAYID_EXT);  in drm_find_displayid_extension()
2583 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_alternate_cea_modes()  argument
2591 	if (!drm_find_cea_extension(edid))  in add_alternate_cea_modes()
3014 add_cea_modes(struct drm_connector *connector, struct edid *edid)  in add_cea_modes()  argument
3016 	const u8 *cea = drm_find_cea_extension(edid);  in add_cea_modes()
3109 void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)  in drm_edid_to_eld()  argument
3121 	cea = drm_find_cea_extension(edid);  in drm_edid_to_eld()
3128 	drm_for_each_detailed_block((u8 *)edid, monitor_name, &name);  in drm_edid_to_eld()
3139 	eld[16] = edid->mfg_id[0];  in drm_edid_to_eld()
3140 	eld[17] = edid->mfg_id[1];  in drm_edid_to_eld()
3141 	eld[18] = edid->prod_code[0];  in drm_edid_to_eld()
3142 	eld[19] = edid->prod_code[1];  in drm_edid_to_eld()
3199 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)  in drm_edid_to_sad()  argument
3205 	cea = drm_find_cea_extension(edid);  in drm_edid_to_sad()
3260 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)  in drm_edid_to_speaker_allocation()  argument
3266 	cea = drm_find_cea_extension(edid);  in drm_edid_to_speaker_allocation()
3380 bool drm_detect_hdmi_monitor(struct edid *edid)  in drm_detect_hdmi_monitor()  argument
3386 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_hdmi_monitor()
3418 bool drm_detect_monitor_audio(struct edid *edid)  in drm_detect_monitor_audio()  argument
3425 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_monitor_audio()
3463 bool drm_rgb_quant_range_selectable(struct edid *edid)  in drm_rgb_quant_range_selectable()  argument
3468 	edid_ext = drm_find_cea_extension(edid);  in drm_rgb_quant_range_selectable()
3498 static bool drm_assign_hdmi_deep_color_info(struct edid *edid,  in drm_assign_hdmi_deep_color_info()  argument
3507 	edid_ext = drm_find_cea_extension(edid);  in drm_assign_hdmi_deep_color_info()
3598 static void drm_add_display_info(struct edid *edid,  in drm_add_display_info()  argument
3604 	info->width_mm = edid->width_cm * 10;  in drm_add_display_info()
3605 	info->height_mm = edid->height_cm * 10;  in drm_add_display_info()
3611 	if (edid->revision < 3)  in drm_add_display_info()
3614 	if (!(edid->input & DRM_EDID_INPUT_DIGITAL))  in drm_add_display_info()
3618 	edid_ext = drm_find_cea_extension(edid);  in drm_add_display_info()
3631 	drm_assign_hdmi_deep_color_info(edid, info, connector);  in drm_add_display_info()
3634 	if (edid->revision < 4)  in drm_add_display_info()
3637 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {  in drm_add_display_info()
3666 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)  in drm_add_display_info()
3668 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)  in drm_add_display_info()
3681 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)  in drm_add_edid_modes()  argument
3686 	if (edid == NULL) {  in drm_add_edid_modes()
3689 	if (!drm_edid_is_valid(edid)) {  in drm_add_edid_modes()
3695 	quirks = edid_get_quirks(edid);  in drm_add_edid_modes()
3711 	num_modes += add_detailed_modes(connector, edid, quirks);  in drm_add_edid_modes()
3712 	num_modes += add_cvt_modes(connector, edid);  in drm_add_edid_modes()
3713 	num_modes += add_standard_modes(connector, edid);  in drm_add_edid_modes()
3714 	num_modes += add_established_modes(connector, edid);  in drm_add_edid_modes()
3715 	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in drm_add_edid_modes()
3716 		num_modes += add_inferred_modes(connector, edid);  in drm_add_edid_modes()
3717 	num_modes += add_cea_modes(connector, edid);  in drm_add_edid_modes()
3718 	num_modes += add_alternate_cea_modes(connector, edid);  in drm_add_edid_modes()
3723 	drm_add_display_info(edid, &connector->display_info, connector);  in drm_add_edid_modes()
4018 			      struct edid *edid)  in drm_get_displayid()  argument
4023 	displayid = drm_find_displayid_extension(edid);  in drm_get_displayid()