36 #define version_greater(edid, maj, min) \  argument
37 	(((edid)->version > (maj)) || \
38 	 ((edid)->version == (maj) && (edid)->revision > (min)))
75 	struct edid *edid;  member
1731 int edid_get_ranges(struct edid1_info *edid, unsigned int *hmin,  in edid_get_ranges()  argument
1739 	if (edid_check_info(edid))  in edid_get_ranges()
1742 	for (i = 0; i < ARRAY_SIZE(edid->monitor_details.descriptor); i++) {  in edid_get_ranges()
1743 		monitor = &edid->monitor_details.descriptor[i];  in edid_get_ranges()
1888 static bool edid_vendor(struct edid *edid, char *vendor)  in edid_vendor()  argument
1892 	edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';  in edid_vendor()
1893 	edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |  in edid_vendor()
1894 			  ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';  in edid_vendor()
1895 	edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';  in edid_vendor()
1962 	struct edid1_info *edid = (struct edid1_info *)buf;  in edid_get_drm_mode()  local
1966 	if (buf_size < sizeof(*edid) || edid_check_info(edid)) {  in edid_get_drm_mode()
1971 	if (!EDID1_INFO_FEATURE_PREFERRED_TIMING_MODE(*edid)) {  in edid_get_drm_mode()
1981 		desc = &edid->monitor_details.descriptor[i];  in edid_get_drm_mode()
1991 	if (!EDID1_INFO_VIDEO_INPUT_DIGITAL(*edid)) {  in edid_get_drm_mode()
1995 	if (edid->version != 1 || edid->revision < 4) {  in edid_get_drm_mode()
1997 		      __func__, edid->version, edid->revision);  in edid_get_drm_mode()
2001 			((edid->video_input_definition & 0x70) >> 3) + 4;  in edid_get_drm_mode()
2010 	struct edid1_info *edid = (struct edid1_info *)buf;  in edid_get_timing()  local
2014 	if (buf_size < sizeof(*edid) || edid_check_info(edid)) {  in edid_get_timing()
2019 	if (!EDID1_INFO_FEATURE_PREFERRED_TIMING_MODE(*edid)) {  in edid_get_timing()
2029 		desc = &edid->monitor_details.descriptor[i];  in edid_get_timing()
2039 	if (!EDID1_INFO_VIDEO_INPUT_DIGITAL(*edid)) {  in edid_get_timing()
2043 	if (edid->version != 1 || edid->revision < 4) {  in edid_get_timing()
2045 		      __func__, edid->version, edid->revision);  in edid_get_timing()
2049 			((edid->video_input_definition & 0x70) >> 3) + 4;  in edid_get_timing()
2053 	if (edid->extension_flag && (buf_size >= EDID_EXT_SIZE)) {  in edid_get_timing()
2055 			(struct edid_cea861_info *)(buf + sizeof(*edid));  in edid_get_timing()
2149 static void edid_get_manufacturer_name(struct edid1_info *edid, char *name)  in edid_get_manufacturer_name()  argument
2151 	name[0] = EDID1_INFO_MANUFACTURER_NAME_CHAR1(*edid) + 'A' - 1;  in edid_get_manufacturer_name()
2152 	name[1] = EDID1_INFO_MANUFACTURER_NAME_CHAR2(*edid) + 'A' - 1;  in edid_get_manufacturer_name()
2153 	name[2] = EDID1_INFO_MANUFACTURER_NAME_CHAR3(*edid) + 'A' - 1;  in edid_get_manufacturer_name()
3050 static u32 edid_get_quirks(struct edid *edid)  in edid_get_quirks()  argument
3058 		if (edid_vendor(edid, quirk->vendor) &&  in edid_get_quirks()
3059 		    (EDID_PRODUCT_ID(edid) == quirk->product_id))  in edid_get_quirks()
3369 static int edid_hfeeodb_extension_block_count(const struct edid *edid)  in edid_hfeeodb_extension_block_count()  argument
3374 	if (!edid->extensions)  in edid_hfeeodb_extension_block_count()
3378 	cta = (u8 *)edid + HDMI_EDID_BLOCK_SIZE * 1;  in edid_hfeeodb_extension_block_count()
3397 static int edid_hfeeodb_block_count(const struct edid *edid)  in edid_hfeeodb_block_count()  argument
3399 	int eeodb = edid_hfeeodb_extension_block_count(edid);  in edid_hfeeodb_block_count()
3407 static u8 *drm_find_edid_extension(const struct edid *edid,  in drm_find_edid_extension()  argument
3415 	if (edid == NULL || edid->extensions == 0)  in drm_find_edid_extension()
3418 	if (edid_hfeeodb_extension_block_count(edid))  in drm_find_edid_extension()
3419 		len = edid_hfeeodb_extension_block_count(edid);  in drm_find_edid_extension()
3421 		len = edid->extensions;  in drm_find_edid_extension()
3425 		edid_ext = (u8 *)edid + HDMI_EDID_BLOCK_SIZE * (i + 1);  in drm_find_edid_extension()
3436 static u8 *drm_find_cea_extension(struct edid *edid)  in drm_find_cea_extension()  argument
3438 	return drm_find_edid_extension(edid, 0x02);  in drm_find_cea_extension()
3455 bool drm_detect_hdmi_monitor(struct edid *edid)  in drm_detect_hdmi_monitor()  argument
3461 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_hdmi_monitor()
3492 bool drm_detect_monitor_audio(struct edid *edid)  in drm_detect_monitor_audio()  argument
3499 	edid_ext = drm_find_cea_extension(edid);  in drm_detect_monitor_audio()
3560 			      struct edid *edid)  in drm_parse_cea_ext()  argument
3566 	edid_ext = drm_find_cea_extension(edid);  in drm_parse_cea_ext()
3594 static void drm_add_display_info(struct hdmi_edid_data *data, struct edid *edid)  in drm_add_display_info()  argument
3598 	info->width_mm = edid->width_cm * 10;  in drm_add_display_info()
3599 	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()
3617 	drm_parse_cea_ext(data, edid);  in drm_add_display_info()
3626 	if ((info->bpc == 0) && (edid->revision < 4) &&  in drm_add_display_info()
3627 	    (edid->input & DRM_EDID_DIGITAL_TYPE_DVI)) {  in drm_add_display_info()
3633 	if (edid->revision < 4)  in drm_add_display_info()
3636 	switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {  in drm_add_display_info()
3665 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)  in drm_add_display_info()
3667 	if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)  in drm_add_display_info()
3674 static u8 *drm_find_edid_extension_from_index(const struct edid *edid,  in drm_find_edid_extension_from_index()  argument
3682 	if (edid == NULL || edid->extensions == 0)  in drm_find_edid_extension_from_index()
3685 	if (edid_hfeeodb_extension_block_count(edid))  in drm_find_edid_extension_from_index()
3686 		len = edid_hfeeodb_extension_block_count(edid);  in drm_find_edid_extension_from_index()
3688 		len = edid->extensions;  in drm_find_edid_extension_from_index()
3692 		edid_ext = (u8 *)edid + HDMI_EDID_BLOCK_SIZE * (i + 1);  in drm_find_edid_extension_from_index()
3706 int add_cea_modes(struct hdmi_edid_data *data, struct edid *edid)  in add_cea_modes()  argument
3714 	if (edid_hfeeodb_extension_block_count(edid))  in add_cea_modes()
3715 		count = edid_hfeeodb_extension_block_count(edid);  in add_cea_modes()
3717 		count = edid->extensions;  in add_cea_modes()
3721 		cea = drm_find_edid_extension_from_index(edid, CEA_EXT, &ext_index);  in add_cea_modes()
3794 	struct edid *edid = (struct edid *)raw_edid;  in drm_for_each_detailed_block()  local
3796 	if (!edid)  in drm_for_each_detailed_block()
3800 		cb(&edid->detailed_timings[i], closure);  in drm_for_each_detailed_block()
3871 struct drm_display_mode *drm_mode_detailed(struct edid *edid,  in drm_mode_detailed()  argument
4159 					    closure->edid, timing,  in do_detailed_mode()
4187 add_detailed_modes(struct hdmi_edid_data *data, struct edid *edid,  in add_detailed_modes()  argument
4192 		.edid = edid,  in add_detailed_modes()
4197 	if (closure.preferred && !version_greater(edid, 1, 3))  in add_detailed_modes()
4199 			(edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);  in add_detailed_modes()
4201 	drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);  in add_detailed_modes()
4267 add_cvt_modes(struct hdmi_edid_data *data, struct edid *edid)  in add_cvt_modes()  argument
4271 		.edid = edid,  in add_cvt_modes()
4274 	if (version_greater(edid, 1, 2))  in add_cvt_modes()
4275 		drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);  in add_cvt_modes()
4293 drm_gtf2_hbreak(struct edid *edid)  in drm_gtf2_hbreak()  argument
4297 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_hbreak()
4302 drm_gtf2_2c(struct edid *edid)  in drm_gtf2_2c()  argument
4306 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2c()
4311 drm_gtf2_m(struct edid *edid)  in drm_gtf2_m()  argument
4315 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_m()
4320 drm_gtf2_k(struct edid *edid)  in drm_gtf2_k()  argument
4324 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_k()
4329 drm_gtf2_2j(struct edid *edid)  in drm_gtf2_2j()  argument
4333 	drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);  in drm_gtf2_2j()
4341 static int standard_timing_level(struct edid *edid)  in standard_timing_level()  argument
4343 	if (edid->revision >= 2) {  in standard_timing_level()
4344 		if (edid->revision >= 4 &&  in standard_timing_level()
4345 		    (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))  in standard_timing_level()
4347 		if (drm_gtf2_hbreak(edid))  in standard_timing_level()
4378 drm_monitor_supports_rb(struct edid *edid)  in drm_monitor_supports_rb()  argument
4380 	if (edid->revision >= 4) {  in drm_monitor_supports_rb()
4383 		drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);  in drm_monitor_supports_rb()
4387 	return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);  in drm_monitor_supports_rb()
4680 drm_mode_std(struct hdmi_edid_data *data, struct edid *edid,  in drm_mode_std()  argument
4691 	int timing_level = standard_timing_level(edid);  in drm_mode_std()
4702 		if (edid->revision < 3)  in drm_mode_std()
4745 	if (drm_monitor_supports_rb(edid)) {  in drm_mode_std()
4772 		if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {  in drm_mode_std()
4776 						    drm_gtf2_m(edid),  in drm_mode_std()
4777 						    drm_gtf2_2c(edid),  in drm_mode_std()
4778 						    drm_gtf2_k(edid),  in drm_mode_std()
4779 						    drm_gtf2_2j(edid));  in drm_mode_std()
4796 	struct edid *edid = closure->edid;  in do_standard_modes()  local
4806 			newmode = drm_mode_std(closure->data, edid, std);  in do_standard_modes()
4825 add_standard_modes(struct hdmi_edid_data *data, struct edid *edid)  in add_standard_modes()  argument
4830 		.edid = edid,  in add_standard_modes()
4836 		newmode = drm_mode_std(data, edid,  in add_standard_modes()
4837 				       &edid->standard_timings[i]);  in add_standard_modes()
4845 	if (version_greater(edid, 1, 0))  in add_standard_modes()
4846 		drm_for_each_detailed_block((u8 *)edid, do_standard_modes,  in add_standard_modes()
4903 add_established_modes(struct hdmi_edid_data *data, struct edid *edid)  in add_established_modes()  argument
4905 	unsigned long est_bits = edid->established_timings.t1 |  in add_established_modes()
4906 		(edid->established_timings.t2 << 8) |  in add_established_modes()
4907 		((edid->established_timings.mfg_rsvd & 0x80) << 9);  in add_established_modes()
4911 		.edid = edid,  in add_established_modes()
4926 	if (version_greater(edid, 1, 0))  in add_established_modes()
4927 		drm_for_each_detailed_block((u8 *)edid,  in add_established_modes()
4957 add_alternate_cea_modes(struct hdmi_edid_data *data, struct edid *edid)  in add_alternate_cea_modes()  argument
4963 	if (!drm_find_cea_extension(edid))  in add_alternate_cea_modes()
5028 static u8 *drm_find_displayid_extension(struct edid *edid)  in drm_find_displayid_extension()  argument
5030 	return drm_find_edid_extension(edid, DISPLAYID_EXT);  in drm_find_displayid_extension()
5137 					struct edid *edid)  in add_displayid_detailed_modes()  argument
5146 	displayid = drm_find_displayid_extension(edid);  in add_displayid_detailed_modes()
5172 		    struct edid *edid, u8 *t)  in mode_in_hsync_range()  argument
5177 	if (edid->revision >= 4)  in mode_in_hsync_range()
5180 	if (edid->revision >= 4)  in mode_in_hsync_range()
5189 		    struct edid *edid, u8 *t)  in mode_in_vsync_range()  argument
5194 	if (edid->revision >= 4)  in mode_in_vsync_range()
5197 	if (edid->revision >= 4)  in mode_in_vsync_range()
5205 range_pixel_clock(struct edid *edid, u8 *t)  in range_pixel_clock()  argument
5212 	if (edid->revision >= 4 && t[10] == 0x04)  in range_pixel_clock()
5220 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,  in mode_in_range()  argument
5226 	if (!mode_in_hsync_range(mode, edid, t))  in mode_in_range()
5229 	if (!mode_in_vsync_range(mode, edid, t))  in mode_in_range()
5232 	max_clock = range_pixel_clock(edid, t);  in mode_in_range()
5238 	if (edid->revision >= 4 && t[10] == 0x04)  in mode_in_range()
5243 	if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))  in mode_in_range()
5270 drm_dmt_modes_for_range(struct hdmi_edid_data *data, struct edid *edid,  in drm_dmt_modes_for_range()  argument
5276 		if (mode_in_range(drm_dmt_modes + i, edid, timing) &&  in drm_dmt_modes_for_range()
5299 drm_gtf_modes_for_range(struct hdmi_edid_data *data, struct edid *edid,  in drm_gtf_modes_for_range()  argument
5313 		if (!mode_in_range(newmode, edid, timing) ||  in drm_gtf_modes_for_range()
5328 drm_cvt_modes_for_range(struct hdmi_edid_data *data, struct edid *edid,  in drm_cvt_modes_for_range()  argument
5333 	bool rb = drm_monitor_supports_rb(edid);  in drm_cvt_modes_for_range()
5343 		if (!mode_in_range(newmode, edid, timing) ||  in drm_cvt_modes_for_range()
5368 						  closure->edid,  in do_inferred_modes()
5371 	if (!version_greater(closure->edid, 1, 1))  in do_inferred_modes()
5378 							  closure->edid,  in do_inferred_modes()
5382 		if (!version_greater(closure->edid, 1, 3))  in do_inferred_modes()
5386 							  closure->edid,  in do_inferred_modes()
5396 add_inferred_modes(struct hdmi_edid_data *data, struct edid *edid)  in add_inferred_modes()  argument
5400 		.edid = edid,  in add_inferred_modes()
5403 	if (version_greater(edid, 1, 0))  in add_inferred_modes()
5404 		drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,  in add_inferred_modes()
5525 	struct edid *edid = (struct edid *)raw_edid;  in drm_edid_block_valid()  local
5571 		if (edid->version != 1) {  in drm_edid_block_valid()
5573 			      edid->version);  in drm_edid_block_valid()
5577 		if (edid->revision > 4)  in drm_edid_block_valid()
5608 static bool drm_edid_is_valid(struct edid *edid)  in drm_edid_is_valid()  argument
5611 	u8 *raw = (u8 *)edid;  in drm_edid_is_valid()
5613 	if (!edid)  in drm_edid_is_valid()
5616 	for (i = 0; i <= edid->extensions; i++)  in drm_edid_is_valid()
5636 	struct edid *edid = (struct edid *)raw_edid;  in drm_add_edid_modes()  local
5638 	if (!edid) {  in drm_add_edid_modes()
5643 	if (!drm_edid_is_valid(edid)) {  in drm_add_edid_modes()
5653 	quirks = edid_get_quirks(edid);  in drm_add_edid_modes()
5659 	drm_add_display_info(data, edid);  in drm_add_edid_modes()
5675 	num_modes += add_detailed_modes(data, edid, quirks);  in drm_add_edid_modes()
5676 	num_modes += add_cvt_modes(data, edid);  in drm_add_edid_modes()
5677 	num_modes += add_standard_modes(data, edid);  in drm_add_edid_modes()
5678 	num_modes += add_established_modes(data, edid);  in drm_add_edid_modes()
5679 	num_modes += add_cea_modes(data, edid);  in drm_add_edid_modes()
5680 	num_modes += add_alternate_cea_modes(data, edid);  in drm_add_edid_modes()
5681 	num_modes += add_displayid_detailed_modes(data, edid);  in drm_add_edid_modes()
5683 	if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)  in drm_add_edid_modes()
5684 		num_modes += add_inferred_modes(data, edid);  in drm_add_edid_modes()
7008 	u8 *new, *edid;  in drm_do_get_edid()  local
7013 	edid = malloc(HDMI_EDID_BLOCK_SIZE);  in drm_do_get_edid()
7014 	if (!edid)  in drm_do_get_edid()
7019 		if (drm_do_probe_ddc_edid(adap, edid, 0, HDMI_EDID_BLOCK_SIZE))  in drm_do_get_edid()
7021 		if (drm_edid_block_valid(edid, 0, true,  in drm_do_get_edid()
7024 		if (i == 0 && drm_edid_is_zero(edid, HDMI_EDID_BLOCK_SIZE)) {  in drm_do_get_edid()
7034 	valid_extensions = edid[0x7e];  in drm_do_get_edid()
7038 	new = realloc(edid, (valid_extensions + 1) * HDMI_EDID_BLOCK_SIZE);  in drm_do_get_edid()
7041 	edid = new;  in drm_do_get_edid()
7044 	block_num = edid[0x7e] + 1;  in drm_do_get_edid()
7047 		u8 *block = edid + j * HDMI_EDID_BLOCK_SIZE;  in drm_do_get_edid()
7071 			int eeodb = edid_hfeeodb_block_count((const struct edid *)edid);  in drm_do_get_edid()
7075 				new = realloc(edid, block_num * HDMI_EDID_BLOCK_SIZE);  in drm_do_get_edid()
7078 				edid = new;  in drm_do_get_edid()
7091 		for (i = 0; i <= edid[0x7e]; i++) {  in drm_do_get_edid()
7092 			u8 *block = edid + i * HDMI_EDID_BLOCK_SIZE;  in drm_do_get_edid()
7104 		kfree(edid);  in drm_do_get_edid()
7105 		edid = new;  in drm_do_get_edid()
7111 		buff = &edid[0x80 * i];  in drm_do_get_edid()
7121 	return edid;  in drm_do_get_edid()