Lines Matching full:edid
47 #define version_greater(edid, maj, min) \ argument
48 (((edid)->version > (maj)) || \
49 ((edid)->version == (maj) && (edid)->revision > (min)))
56 * EDID blocks out in the wild have a variety of bugs, try to collect
91 struct edid *edid; member
168 /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
583 * modes are old-school Mac modes. The EDID spec says the 1152x864@75 mode
1563 * drm_edid_header_is_valid - sanity check the header of the base EDID block
1564 * @raw_edid: pointer to raw base EDID block
1566 * Sanity check the header of the base EDID block.
1585 "Minimum number of valid EDID header bytes (0-8, default 6)");
1619 * drm_edid_are_equal - compare two edid blobs.
1623 * edid had changed.
1625 bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2) in drm_edid_are_equal()
1650 * drm_edid_block_valid - Sanity check the EDID block (base or extension)
1651 * @raw_edid: pointer to raw EDID block
1653 * @print_bad_edid: if true, dump bad EDID blocks to the console
1656 * Validate a base or extension EDID block and optionally dump bad blocks to
1665 struct edid *edid = (struct edid *)raw_edid; in drm_edid_block_valid() local
1687 DRM_DEBUG("Fixing EDID header, your hardware may be failing\n"); in drm_edid_block_valid()
1703 DRM_DEBUG("EDID checksum is invalid, remainder is %d\n", csum); in drm_edid_block_valid()
1707 DRM_NOTE("EDID checksum is invalid, remainder is %d\n", csum); in drm_edid_block_valid()
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()
1722 DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n"); in drm_edid_block_valid()
1734 pr_notice("EDID block is all zeroes\n"); in drm_edid_block_valid()
1736 pr_notice("Raw EDID:\n"); in drm_edid_block_valid()
1747 * drm_edid_is_valid - sanity check EDID data
1748 * @edid: EDID data
1750 * Sanity-check an entire EDID record (including extensions)
1752 * Return: True if the EDID data is valid, false otherwise.
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()
1772 * drm_do_probe_ddc_edid() - get EDID information via I2C
1774 * @buf: EDID data buffer to be filled
1775 * @block: 128 byte EDID block to start fetching from
1776 * @len: EDID data buffer length to fetch
1778 * Try to fetch EDID information by calling I2C driver functions.
1835 u8 *edid, int num_blocks) in connector_bad_edid() argument
1841 * 0x7e in the EDID is the number of extension blocks. The EDID in connector_bad_edid()
1843 * of 0x7e in the EDID of the _index_ of the last block in the in connector_bad_edid()
1846 last_block = edid[0x7e]; in connector_bad_edid()
1848 /* Calculate real checksum for the last edid extension block data */ in connector_bad_edid()
1851 drm_edid_block_checksum(edid + last_block * EDID_LENGTH); in connector_bad_edid()
1856 drm_warn(connector->dev, "%s: EDID is invalid:\n", connector->name); in connector_bad_edid()
1858 u8 *block = edid + i * EDID_LENGTH; in connector_bad_edid()
1874 /* Get override or firmware EDID */
1875 static struct edid *drm_get_override_edid(struct drm_connector *connector) in drm_get_override_edid()
1877 struct edid *override = NULL; in drm_get_override_edid()
1889 * drm_add_override_edid_modes - add modes from override/firmware EDID
1892 * Add modes from the override/firmware EDID, if available. Only to be used from
1894 * failed during drm_get_edid() and caused the override/firmware EDID to be
1901 struct edid *override; in drm_add_override_edid_modes()
1910 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] adding %d modes via fallback override/firmware EDID\n", in drm_add_override_edid_modes()
1953 static int edid_hfeeodb_extension_block_count(const struct edid *edid) in edid_hfeeodb_extension_block_count() argument
1958 if (!edid->extensions) in edid_hfeeodb_extension_block_count()
1961 /* HF-EEODB is always in the first EDID extension block only */ in edid_hfeeodb_extension_block_count()
1962 cta = (u8 *)edid + EDID_LENGTH * 1; in edid_hfeeodb_extension_block_count()
1971 * Sinks that include the HF-EEODB in their E-EDID shall include one and in edid_hfeeodb_extension_block_count()
1972 * only one instance of the HF-EEODB in the E-EDID, occupying bytes 4 in edid_hfeeodb_extension_block_count()
1973 * through 6 of Block 1 of the E-EDID. in edid_hfeeodb_extension_block_count()
1981 static int edid_hfeeodb_block_count(const struct edid *edid) in edid_hfeeodb_block_count() argument
1983 int eeodb = edid_hfeeodb_extension_block_count(edid); in edid_hfeeodb_block_count()
1989 * drm_do_get_edid - get EDID data using a custom EDID block read function
1991 * @get_edid_block: EDID block read function
1995 * exposes a different interface to read EDID blocks this function can be used
1996 * to get EDID data using a custom block read function.
2002 * The EDID may be overridden using debugfs override_edid or firmare EDID
2004 * order. Having either of them bypasses actual EDID reads.
2006 * Return: Pointer to valid EDID or NULL if we couldn't find any.
2008 struct edid *drm_do_get_edid(struct drm_connector *connector, in drm_do_get_edid()
2014 u8 *edid, *new; in drm_do_get_edid() local
2015 struct edid *override; in drm_do_get_edid()
2021 edid = kmalloc(EDID_LENGTH, GFP_KERNEL); in drm_do_get_edid()
2022 if (!edid) in drm_do_get_edid()
2027 if (get_edid_block(data, edid, 0, EDID_LENGTH)) in drm_do_get_edid()
2029 if (drm_edid_block_valid(edid, 0, false, in drm_do_get_edid()
2032 if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) { in drm_do_get_edid()
2041 valid_extensions = edid[0x7e]; in drm_do_get_edid()
2043 return (struct edid *)edid; in drm_do_get_edid()
2045 new = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL); in drm_do_get_edid()
2048 edid = new; in drm_do_get_edid()
2050 num_blocks = edid[0x7e] + 1; in drm_do_get_edid()
2053 u8 *block = edid + j * EDID_LENGTH; in drm_do_get_edid()
2067 * If the first EDID extension is a CTA extension, and in drm_do_get_edid()
2075 int eeodb = edid_hfeeodb_block_count((const struct edid *)edid); in drm_do_get_edid()
2079 new = krealloc(edid, num_blocks * EDID_LENGTH, GFP_KERNEL); in drm_do_get_edid()
2082 edid = new; in drm_do_get_edid()
2090 connector_bad_edid(connector, edid, edid[0x7e] + 1); in drm_do_get_edid()
2098 for (i = 0; i <= edid[0x7e]; i++) { in drm_do_get_edid()
2099 u8 *block = edid + i * EDID_LENGTH; in drm_do_get_edid()
2111 kfree(edid); in drm_do_get_edid()
2112 edid = new; in drm_do_get_edid()
2115 return (struct edid *)edid; in drm_do_get_edid()
2118 kfree(edid); in drm_do_get_edid()
2122 struct edid *drm_do_get_edid(struct drm_connector *connector, in drm_do_get_edid()
2128 u8 *edid, *new; in drm_do_get_edid() local
2129 struct edid *override; in drm_do_get_edid()
2135 if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL) in drm_do_get_edid()
2140 if (get_edid_block(data, edid, 0, EDID_LENGTH)) in drm_do_get_edid()
2142 if (drm_edid_block_valid(edid, 0, false, in drm_do_get_edid()
2145 if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) { in drm_do_get_edid()
2154 valid_extensions = edid[0x7e]; in drm_do_get_edid()
2156 return (struct edid *)edid; in drm_do_get_edid()
2158 new = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL); in drm_do_get_edid()
2161 edid = new; in drm_do_get_edid()
2163 for (j = 1; j <= edid[0x7e]; j++) { in drm_do_get_edid()
2164 u8 *block = edid + j * EDID_LENGTH; in drm_do_get_edid()
2177 if (valid_extensions != edid[0x7e]) { in drm_do_get_edid()
2180 connector_bad_edid(connector, edid, edid[0x7e] + 1); in drm_do_get_edid()
2188 for (i = 0; i <= edid[0x7e]; i++) { in drm_do_get_edid()
2189 u8 *block = edid + i * EDID_LENGTH; in drm_do_get_edid()
2201 kfree(edid); in drm_do_get_edid()
2202 edid = new; in drm_do_get_edid()
2205 return (struct edid *)edid; in drm_do_get_edid()
2208 connector_bad_edid(connector, edid, 1); in drm_do_get_edid()
2210 kfree(edid); in drm_do_get_edid()
2232 * drm_get_edid - get EDID data, if available
2236 * Poke the given I2C channel to grab EDID data if possible. If found,
2239 * Return: Pointer to valid EDID or NULL if we couldn't find any.
2241 struct edid *drm_get_edid(struct drm_connector *connector, in drm_get_edid()
2244 struct edid *edid; in drm_get_edid() local
2252 edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter); in drm_get_edid()
2253 drm_connector_update_edid_property(connector, edid); in drm_get_edid()
2254 return edid; in drm_get_edid()
2259 * drm_get_edid_switcheroo - get EDID data for a vga_switcheroo output
2265 * switch DDC to the GPU which is retrieving EDID.
2267 * Return: Pointer to valid EDID or %NULL if we couldn't find any.
2269 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector, in drm_get_edid_switcheroo()
2273 struct edid *edid; in drm_get_edid_switcheroo() local
2276 edid = drm_get_edid(connector, adapter); in drm_get_edid_switcheroo()
2279 return edid; in drm_get_edid_switcheroo()
2284 * drm_edid_duplicate - duplicate an EDID and the extensions
2285 * @edid: EDID to duplicate
2287 * Return: Pointer to duplicated EDID or NULL on allocation failure.
2289 struct edid *drm_edid_duplicate(const struct edid *edid) in drm_edid_duplicate() argument
2291 return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL); in drm_edid_duplicate()
2295 /*** EDID parsing ***/
2298 * edid_vendor - match a string against EDID's obfuscated vendor field
2299 * @edid: EDID to match
2302 * Returns true if @vendor is in @edid, false otherwise
2304 static bool edid_vendor(const struct edid *edid, const char *vendor) in edid_vendor() argument
2308 edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@'; in edid_vendor()
2309 edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) | in edid_vendor()
2310 ((edid->mfg_id[1] & 0xe0) >> 5)) + '@'; in edid_vendor()
2311 edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@'; in edid_vendor()
2317 * edid_get_quirks - return quirk flags for a given EDID
2318 * @edid: EDID to process
2322 static u32 edid_get_quirks(const struct edid *edid) in edid_get_quirks() argument
2330 if (edid_vendor(edid, quirk->vendor) && in edid_get_quirks()
2331 (EDID_PRODUCT_ID(edid) == quirk->product_id)) in edid_get_quirks()
2481 struct edid *edid = (struct edid *)raw_edid; in drm_for_each_detailed_block() local
2483 if (edid == NULL) in drm_for_each_detailed_block()
2487 cb(&(edid->detailed_timings[i]), closure); in drm_for_each_detailed_block()
2517 /* EDID 1.4 defines this explicitly. For EDID 1.3, we guess, badly. */
2519 drm_monitor_supports_rb(struct edid *edid) in drm_monitor_supports_rb() argument
2521 if (edid->revision >= 4) { in drm_monitor_supports_rb()
2524 drm_for_each_detailed_block((u8 *)edid, is_rb, &ret); in drm_monitor_supports_rb()
2528 return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0); in drm_monitor_supports_rb()
2545 drm_gtf2_hbreak(struct edid *edid) in drm_gtf2_hbreak() argument
2549 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r); in drm_gtf2_hbreak()
2554 drm_gtf2_2c(struct edid *edid) in drm_gtf2_2c() argument
2558 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r); in drm_gtf2_2c()
2563 drm_gtf2_m(struct edid *edid) in drm_gtf2_m() argument
2567 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r); in drm_gtf2_m()
2572 drm_gtf2_k(struct edid *edid) in drm_gtf2_k() argument
2576 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r); in drm_gtf2_k()
2581 drm_gtf2_2j(struct edid *edid) in drm_gtf2_2j() argument
2585 drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r); in drm_gtf2_2j()
2591 * @edid: EDID block to scan
2593 static int standard_timing_level(struct edid *edid) in standard_timing_level() argument
2595 if (edid->revision >= 2) { in standard_timing_level()
2596 if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)) in standard_timing_level()
2598 if (drm_gtf2_hbreak(edid)) in standard_timing_level()
2600 if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF) in standard_timing_level()
2628 * @connector: connector of for the EDID block
2629 * @edid: EDID block to scan
2636 drm_mode_std(struct drm_connector *connector, struct edid *edid, in drm_mode_std() argument
2647 int timing_level = standard_timing_level(edid); in drm_mode_std()
2652 /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */ in drm_mode_std()
2658 if (edid->revision < 3) in drm_mode_std()
2701 if (drm_monitor_supports_rb(edid)) { in drm_mode_std()
2727 if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) { in drm_mode_std()
2731 drm_gtf2_m(edid), in drm_mode_std()
2732 drm_gtf2_2c(edid), in drm_mode_std()
2733 drm_gtf2_k(edid), in drm_mode_std()
2734 drm_gtf2_2j(edid)); in drm_mode_std()
2746 * EDID is delightfully ambiguous about how interlaced modes are to be
2788 * drm_mode_detailed - create a new mode from an EDID detailed timing section
2790 * @edid: EDID block
2791 * @timing: EDID detailed timing info
2794 * An EDID detailed timing block contains enough info for us to create and
2798 struct edid *edid, in drm_mode_detailed() argument
2886 mode->width_mm = edid->width_cm * 10; in drm_mode_detailed()
2887 mode->height_mm = edid->height_cm * 10; in drm_mode_detailed()
2898 struct edid *edid, u8 *t) in mode_in_hsync_range() argument
2903 if (edid->revision >= 4) in mode_in_hsync_range()
2906 if (edid->revision >= 4) in mode_in_hsync_range()
2915 struct edid *edid, u8 *t) in mode_in_vsync_range() argument
2920 if (edid->revision >= 4) in mode_in_vsync_range()
2923 if (edid->revision >= 4) in mode_in_vsync_range()
2931 range_pixel_clock(struct edid *edid, u8 *t) in range_pixel_clock() argument
2938 if (edid->revision >= 4 && t[10] == 0x04) in range_pixel_clock()
2946 mode_in_range(const struct drm_display_mode *mode, struct edid *edid, in mode_in_range() argument
2952 if (!mode_in_hsync_range(mode, edid, t)) in mode_in_range()
2955 if (!mode_in_vsync_range(mode, edid, t)) in mode_in_range()
2958 if ((max_clock = range_pixel_clock(edid, t))) in mode_in_range()
2963 if (edid->revision >= 4 && t[10] == 0x04) in mode_in_range()
2967 if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid)) in mode_in_range()
2992 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid, in drm_dmt_modes_for_range() argument
3000 if (mode_in_range(drm_dmt_modes + i, edid, timing) && in drm_dmt_modes_for_range()
3027 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid, in drm_gtf_modes_for_range() argument
3042 if (!mode_in_range(newmode, edid, timing) || in drm_gtf_modes_for_range()
3056 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid, in drm_cvt_modes_for_range() argument
3062 bool rb = drm_monitor_supports_rb(edid); in drm_cvt_modes_for_range()
3072 if (!mode_in_range(newmode, edid, timing) || in drm_cvt_modes_for_range()
3096 closure->edid, in do_inferred_modes()
3099 if (!version_greater(closure->edid, 1, 1)) in do_inferred_modes()
3106 closure->edid, in do_inferred_modes()
3110 if (!version_greater(closure->edid, 1, 3)) in do_inferred_modes()
3114 closure->edid, in do_inferred_modes()
3124 add_inferred_modes(struct drm_connector *connector, struct edid *edid) in add_inferred_modes() argument
3128 .edid = edid, in add_inferred_modes()
3131 if (version_greater(edid, 1, 0)) in add_inferred_modes()
3132 drm_for_each_detailed_block((u8 *)edid, do_inferred_modes, in add_inferred_modes()
3179 * add_established_modes - get est. modes from EDID and add them
3181 * @edid: EDID block to scan
3183 * Each EDID block contains a bitmap of the supported "established modes" list
3187 add_established_modes(struct drm_connector *connector, struct edid *edid) in add_established_modes() argument
3190 unsigned long est_bits = edid->established_timings.t1 | in add_established_modes()
3191 (edid->established_timings.t2 << 8) | in add_established_modes()
3192 ((edid->established_timings.mfg_rsvd & 0x80) << 9); in add_established_modes()
3196 .edid = edid, in add_established_modes()
3211 if (version_greater(edid, 1, 0)) in add_established_modes()
3212 drm_for_each_detailed_block((u8 *)edid, in add_established_modes()
3224 struct edid *edid = closure->edid; in do_standard_modes() local
3234 newmode = drm_mode_std(connector, edid, std); in do_standard_modes()
3243 * add_standard_modes - get std. modes from EDID and add them
3245 * @edid: EDID block to scan
3248 * GTF or CVT. Grab them from @edid and add them to the list.
3251 add_standard_modes(struct drm_connector *connector, struct edid *edid) in add_standard_modes() argument
3256 .edid = edid, in add_standard_modes()
3262 newmode = drm_mode_std(connector, edid, in add_standard_modes()
3263 &edid->standard_timings[i]); in add_standard_modes()
3270 if (version_greater(edid, 1, 0)) in add_standard_modes()
3271 drm_for_each_detailed_block((u8 *)edid, do_standard_modes, in add_standard_modes()
3343 add_cvt_modes(struct drm_connector *connector, struct edid *edid) in add_cvt_modes() argument
3347 .edid = edid, in add_cvt_modes()
3350 if (version_greater(edid, 1, 2)) in add_cvt_modes()
3351 drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure); in add_cvt_modes()
3370 closure->edid, timing, in do_detailed_mode()
3393 * @edid: EDID block to scan
3397 add_detailed_modes(struct drm_connector *connector, struct edid *edid, in add_detailed_modes() argument
3402 .edid = edid, in add_detailed_modes()
3407 if (closure.preferred && !version_greater(edid, 1, 3)) in add_detailed_modes()
3409 (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING); in add_detailed_modes()
3411 drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure); in add_detailed_modes()
3431 * Search EDID for CEA extension block.
3434 static u8 *drm_find_edid_extension(const struct edid *edid, in drm_find_edid_extension() argument
3441 /* No EDID or EDID extensions */ in drm_find_edid_extension()
3442 if (edid == NULL || edid->extensions == 0) in drm_find_edid_extension()
3445 if (edid_hfeeodb_extension_block_count(edid)) in drm_find_edid_extension()
3446 len = edid_hfeeodb_extension_block_count(edid); in drm_find_edid_extension()
3448 len = edid->extensions; in drm_find_edid_extension()
3452 edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1); in drm_find_edid_extension()
3466 static u8 *drm_find_edid_extension(const struct edid *edid, in drm_find_edid_extension() argument
3472 /* No EDID or EDID extensions */ in drm_find_edid_extension()
3473 if (edid == NULL || edid->extensions == 0) in drm_find_edid_extension()
3477 for (i = *ext_index; i < edid->extensions; i++) { in drm_find_edid_extension()
3478 edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1); in drm_find_edid_extension()
3483 if (i >= edid->extensions) in drm_find_edid_extension()
3492 static u8 *drm_find_displayid_extension(const struct edid *edid, in drm_find_displayid_extension() argument
3496 u8 *displayid = drm_find_edid_extension(edid, DISPLAYID_EXT, ext_index); in drm_find_displayid_extension()
3503 /* EDID extensions block checksum isn't for us */ in drm_find_displayid_extension()
3517 static u8 *drm_find_cea_extension(const struct edid *edid) in drm_find_cea_extension() argument
3528 cea = drm_find_edid_extension(edid, CEA_EXT, &ext_index); in drm_find_cea_extension()
3535 displayid = drm_find_displayid_extension(edid, &length, &idx, in drm_find_cea_extension()
3809 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid) in add_alternate_cea_modes() argument
3817 if (!drm_find_cea_extension(edid)) in add_alternate_cea_modes()
4332 /* DisplayID CTA extension blocks and top-level CEA EDID in cea_db_offsets()
4342 * CEA EDID block defines byte 2 as: in cea_db_offsets()
4489 add_cea_modes(struct drm_connector *connector, struct edid *edid) in add_cea_modes() argument
4497 if (edid_hfeeodb_extension_block_count(edid)) in add_cea_modes()
4498 count = edid_hfeeodb_extension_block_count(edid); in add_cea_modes()
4500 count = edid->extensions; in add_cea_modes()
4505 cea = drm_find_edid_extension(edid, CEA_EXT, &ext_index); in add_cea_modes()
4526 /* Add 4:2:0(only) modes present in EDID */ in add_cea_modes()
4549 add_cea_modes(struct drm_connector *connector, struct edid *edid) in add_cea_modes() argument
4551 const u8 *cea = drm_find_cea_extension(edid); in add_cea_modes()
4576 /* Add 4:2:0(only) modes present in EDID */ in add_cea_modes()
4728 static int get_monitor_name(struct edid *edid, char name[13]) in get_monitor_name() argument
4733 if (!edid || !name) in get_monitor_name()
4736 drm_for_each_detailed_block((u8 *)edid, monitor_name, &edid_name); in get_monitor_name()
4748 * drm_edid_get_monitor_name - fetch the monitor name from the edid
4749 * @edid: monitor EDID information
4754 void drm_edid_get_monitor_name(struct edid *edid, char *name, int bufsize) in drm_edid_get_monitor_name() argument
4762 name_length = min(get_monitor_name(edid, buf), bufsize - 1); in drm_edid_get_monitor_name()
4781 * drm_edid_to_eld - build ELD from EDID
4783 * @edid: EDID to parse
4785 * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
4788 static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid) in drm_edid_to_eld() argument
4799 if (!edid) in drm_edid_to_eld()
4802 cea = drm_find_cea_extension(edid); in drm_edid_to_eld()
4808 mnl = get_monitor_name(edid, &eld[DRM_ELD_MONITOR_NAME_STRING]); in drm_edid_to_eld()
4816 eld[DRM_ELD_MANUFACTURER_NAME0] = edid->mfg_id[0]; in drm_edid_to_eld()
4817 eld[DRM_ELD_MANUFACTURER_NAME1] = edid->mfg_id[1]; in drm_edid_to_eld()
4818 eld[DRM_ELD_PRODUCT_CODE0] = edid->prod_code[0]; in drm_edid_to_eld()
4819 eld[DRM_ELD_PRODUCT_CODE1] = edid->prod_code[1]; in drm_edid_to_eld()
4874 * drm_edid_to_sad - extracts SADs from EDID
4875 * @edid: EDID to parse
4878 * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
4884 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads) in drm_edid_to_sad() argument
4890 cea = drm_find_cea_extension(edid); in drm_edid_to_sad()
4935 * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
4936 * @edid: EDID to parse
4939 * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
4946 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb) in drm_edid_to_speaker_allocation() argument
4952 cea = drm_find_cea_extension(edid); in drm_edid_to_speaker_allocation()
5018 * Convert raw EDID values to millisecond. in drm_av_sync_delay()
5032 * @edid: monitor EDID information
5036 * Drivers that have added the modes parsed from EDID to drm_display_info
5041 bool drm_detect_hdmi_monitor(struct edid *edid) in drm_detect_hdmi_monitor() argument
5047 edid_ext = drm_find_cea_extension(edid); in drm_detect_hdmi_monitor()
5069 * @edid: EDID block to scan
5075 * audio' is not defined in EDID.
5079 bool drm_detect_monitor_audio(struct edid *edid) in drm_detect_monitor_audio() argument
5086 edid_ext = drm_find_cea_extension(edid); in drm_detect_monitor_audio()
5209 * * Availability of a HF-VSDB block in EDID (check) in drm_parse_hdmi_forum_vsdb()
5242 DRM_DEBUG_KMS("hdmi_21 sink detected. parsing edid\n"); in drm_parse_hdmi_forum_vsdb()
5389 const struct edid *edid) in drm_parse_cea_ext() argument
5395 edid_ext = drm_find_cea_extension(edid); in drm_parse_cea_ext()
5453 const struct edid *edid) in drm_get_monitor_range() argument
5457 if (!version_greater(edid, 1, 1)) in drm_get_monitor_range()
5460 drm_for_each_detailed_block((u8 *)edid, get_monitor_range, in drm_get_monitor_range()
5468 /* A connector has no EDID information, so we've got no EDID to compute quirks from. Reset
5469 * all of the values which would have been set from EDID
5493 u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid) in drm_add_display_info() argument
5497 u32 quirks = edid_get_quirks(edid); in drm_add_display_info()
5501 info->width_mm = edid->width_cm * 10; in drm_add_display_info()
5502 info->height_mm = edid->height_cm * 10; in drm_add_display_info()
5506 drm_get_monitor_range(connector, edid); in drm_add_display_info()
5510 if (edid->revision < 3) in drm_add_display_info()
5513 if (!(edid->input & DRM_EDID_INPUT_DIGITAL)) in drm_add_display_info()
5517 drm_parse_cea_ext(connector, edid); in drm_add_display_info()
5520 * Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3? in drm_add_display_info()
5522 * For such displays, the DFP spec 1.0, section 3.10 "EDID support" in drm_add_display_info()
5523 * tells us to assume 8 bpc color depth if the EDID doesn't have in drm_add_display_info()
5526 if (info->bpc == 0 && edid->revision == 3 && in drm_add_display_info()
5527 edid->input & DRM_EDID_DIGITAL_DFP_1_X) { in drm_add_display_info()
5534 if (edid->revision < 4) in drm_add_display_info()
5537 switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) { in drm_add_display_info()
5562 DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n", in drm_add_display_info()
5565 if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444) in drm_add_display_info()
5567 if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422) in drm_add_display_info()
5670 struct edid *edid) in add_displayid_detailed_modes() argument
5679 displayid = drm_find_displayid_extension(edid, &length, &idx, in add_displayid_detailed_modes()
5698 * drm_add_edid_modes - add modes from EDID data, if available
5700 * @edid: EDID data
5704 * can be derived from the edid.
5708 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid) in drm_add_edid_modes() argument
5713 if (edid == NULL) { in drm_add_edid_modes()
5717 if (!drm_edid_is_valid(edid)) { in drm_add_edid_modes()
5719 drm_warn(connector->dev, "%s: EDID invalid.\n", in drm_add_edid_modes()
5724 drm_edid_to_eld(connector, edid); in drm_add_edid_modes()
5731 quirks = drm_add_display_info(connector, edid); in drm_add_edid_modes()
5734 * EDID spec says modes should be preferred in this order: in drm_add_edid_modes()
5747 num_modes += add_detailed_modes(connector, edid, quirks); in drm_add_edid_modes()
5748 num_modes += add_cvt_modes(connector, edid); in drm_add_edid_modes()
5749 num_modes += add_standard_modes(connector, edid); in drm_add_edid_modes()
5750 num_modes += add_established_modes(connector, edid); in drm_add_edid_modes()
5751 num_modes += add_cea_modes(connector, edid); in drm_add_edid_modes()
5752 num_modes += add_alternate_cea_modes(connector, edid); in drm_add_edid_modes()
5753 num_modes += add_displayid_detailed_modes(connector, edid); in drm_add_edid_modes()
5754 if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF) in drm_add_edid_modes()
5755 num_modes += add_inferred_modes(connector, edid); in drm_add_edid_modes()
5777 * drm_add_modes_noedid - add modes for the connectors without EDID
6348 const struct edid *edid) in drm_update_tile_info() argument
6356 displayid = drm_find_displayid_extension(edid, &length, &idx, in drm_update_tile_info()