diff options
| author | Hung-Te Lin <hungte@chromium.org> | 2014-04-03 21:13:11 +0800 |
|---|---|---|
| committer | Isaac Christensen <isaac.christensen@se-eng.com> | 2014-10-01 17:26:09 +0200 |
| commit | 08f6c80d34db90124e7937ac92e930958fb47ca3 (patch) | |
| tree | 1005f95f32bd2196c9bd8aa2a1ad058655bac6aa /src/lib | |
| parent | b2c1062116ec2adce60cbc75908a921b9a35a2b4 (diff) | |
| download | coreboot-08f6c80d34db90124e7937ac92e930958fb47ca3.tar.xz | |
edid: Support EDID 1.4.
EDID v1.4 has changed some fields (0xfc - Monitor Name, 0xfd - Monitor Range
Limits) to optional so we need to list the requirements explicitly instead of
sharing v1.3 requirements.
Change-Id: I5c7ca06893bd20e178bc35164c4ca639c881e00b
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/193013
(cherry picked from commit 2ad598b8bd620117e70e13347365d74a7c6b87ef)
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6998
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/edid.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/lib/edid.c b/src/lib/edid.c index b171c8b99b..6efe6a95ba 100644 --- a/src/lib/edid.c +++ b/src/lib/edid.c @@ -1251,7 +1251,24 @@ int decode_edid(unsigned char *edid, int size, struct edid *out) * } */ - if (claims_one_point_three) { + if (claims_one_point_four) { + if (nonconformant_digital_display || + !has_valid_string_termination || + !has_valid_descriptor_pad || + !has_preferred_timing) + conformant = 0; + if (!conformant) + printk(BIOS_ERR, "EDID block does NOT conform to EDID 1.4!\n"); + if (nonconformant_digital_display) + printk(BIOS_ERR, "\tDigital display field contains garbage: %x\n", + nonconformant_digital_display); + if (!has_valid_string_termination) + printk(BIOS_ERR, "\tDetailed block string not properly terminated\n"); + if (!has_valid_descriptor_pad) + printk(BIOS_ERR, "\tInvalid descriptor block padding\n"); + if (!has_preferred_timing) + printk(BIOS_ERR, "\tMissing preferred timing\n"); + } else if (claims_one_point_three) { if (nonconformant_digital_display || !has_valid_string_termination || !has_valid_descriptor_pad || |