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| author | Hans de Goede <hdegoede@redhat.com> | 2014-12-20 14:30:27 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-01-14 14:56:38 +0100 |
| commit | d2fabdc71ccf0eee938cd77a0eabffb5debef42d (patch) | |
| tree | b9f723710437c171fd66ab8826feaa9be0695fd8 /include | |
| parent | e745d064b441dbf48eac4bc2c494263d54262dec (diff) | |
| download | u-boot-d2fabdc71ccf0eee938cd77a0eabffb5debef42d.zip u-boot-d2fabdc71ccf0eee938cd77a0eabffb5debef42d.tar.gz u-boot-d2fabdc71ccf0eee938cd77a0eabffb5debef42d.tar.bz2 | |
edid: Add struct and defines for cea681 extension blocks
Add a struct describing the (fixed) bits of cea681 edid extension blocks,
and defines for accessing various bitfields.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/edid.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/edid.h b/include/edid.h index a69f43a..18ec1d5 100644 --- a/include/edid.h +++ b/include/edid.h @@ -230,6 +230,25 @@ struct edid1_info { unsigned char checksum; } __attribute__ ((__packed__)); +struct edid_cea861_info { + unsigned char extension_tag; +#define EDID_CEA861_EXTENSION_TAG 0x02 + unsigned char revision; + unsigned char dtd_offset; + unsigned char dtd_count; +#define EDID_CEA861_SUPPORTS_UNDERSCAN(_x) \ + GET_BIT(((_x).dtd_count), 7) +#define EDID_CEA861_SUPPORTS_BASIC_AUDIO(_x) \ + GET_BIT(((_x).dtd_count), 6) +#define EDID_CEA861_SUPPORTS_YUV444(_x) \ + GET_BIT(((_x).dtd_count), 5) +#define EDID_CEA861_SUPPORTS_YUV422(_x) \ + GET_BIT(((_x).dtd_count), 4) +#define EDID_CEA861_DTD_COUNT(_x) \ + GET_BITS(((_x).dtd_count), 3, 0) + unsigned char data[124]; +} __attribute__ ((__packed__)); + /** * Print the EDID info. * |