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149 commits 15 branches 3 tags 909 KiB
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33 commits

Author SHA1 Message Date
Sebastian Wick
ef67125056 edid: add support for Color Management Data descriptors 
Signed-off-by: Sebastian Wick <sebastian.wick@redhat.com>
 2022-09-26 21:51:58 +02:00
Simon Ser
28beee232c edid: parse established timings III 
This display descriptor contains a bitfield indicating support for
DMT timings.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-09-26 09:18:59 +02:00
Sebastian Wick
cc7597d9cc edid: add support for color point descriptors 
Signed-off-by: Sebastian Wick <sebastian.wick@redhat.com>
 2022-09-15 16:26:03 +02:00
Simon Ser
c637a9daf8 edid: parse timing data from CVT range limit descriptor 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-09-06 09:27:32 +02:00
Simon Ser
7c8bcb09eb edid: parse timing data from secondary GTF range limit descriptor 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-09-06 09:26:32 +02:00
Simon Ser
7a6d694b1a Add basic support for DisplayID in EDID extension blocks 
Establish the new headers and structs, and just parse the
version/revision for now.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-09-02 06:42:06 +00:00
Sebastian Wick
44e1810f2b edid: split the detailed timing signal union into separate structs 
Nested structs makes it impossible to extend the nested struct after
extending the base struct. The union acts as a single struct in this
case but the nesting is still an issue. Use pointers to those structs instead
to keep all of them extensible. Only the struct which is applicable for the
signal type is not a null pointer to make sure only valid data is accessed.

Signed-off-by: Sebastian Wick <sebastian.wick@redhat.com>
 2022-08-30 12:24:46 +02:00
Simon Ser
93b0fd18de edid: add support for standard timings descriptor 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-08-29 11:54:48 +00:00
Simon Ser
92c0933b44 edid: parse analog video input params 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-08-09 09:07:17 +00:00
Simon Ser
7275f65131 edid: expose _di_edid_parse_detailed_timing_def 
This is a private function which parses DTDs. This will be useful
in the next commit to parse DTDs from the CTA extension.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-08-08 18:37:52 +02:00
Simon Ser
501c20f854 edid: parse established timings I and II 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-08-08 16:33:14 +00:00
Simon Ser
7834b6ba22 info: introduce di_logger 
This can be used by parsers (EDID, CTA, DisplayID, etc) to report
errors.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-08-04 08:40:36 +02:00
Simon Ser
afdacff9f8 cta: introduce new API for CTA-861 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-08-01 16:41:33 +02:00
Simon Ser
a1f97e89fe Add failure message reporting functions 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-29 12:25:48 +02:00
Simon Ser
fed3a18b64 edid: add support for chromaticity coordinates 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-21 16:14:52 +02:00
Simon Ser
2b6f3804a0 edid: parse standard timings 
The edid-decode output uses data from the DMT, so we're not able
to replicate it yet.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-21 16:07:52 +02:00
Simon Ser
669bdac3c8 edid: parse display color type 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-21 12:48:49 +00:00
Simon Ser
c8b9b8f42d edid: parse display range limits descriptor 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-15 17:29:33 +02:00
Simon Ser
13a9287e40 edid: add support for detailed timing definitions 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-14 16:37:57 +02:00
Simon Ser
c383417629 edid: prefix private functions with "_di_" 
The extra underscore indicates that it's not a function which is
part of our public API. This will allow the next commit to setup the
linker to export functions based on their name.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-14 11:40:07 +00:00
Simon Ser
10435a83e8 edid: parse other feature support flags 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-10 11:49:20 +00:00
Simon Ser
0473e12c54 edid: parse supported color encoding formats 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-10 11:49:20 +00:00
Simon Ser
039a2a15f7 edid: parse supported DPMS states 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-10 11:49:20 +00:00
Simon Ser
83396e28e3 edid: parse basic gamma 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-10 11:49:20 +00:00
Simon Ser
5b156d8370 edid: parse screen size 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-10 11:49:20 +00:00
Simon Ser
b1bce19f03 edid: parse digital video input definition 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-10 11:49:20 +00:00
Simon Ser
7a31791343 edid: add support for product serial, name and data strings 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-09 07:28:16 +00:00
Simon Ser
2f8f41ea48 edid: add basic support for display descriptors 
Expose an API to list display descriptors. Detailed timing
descriptors are not parsed.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-09 07:28:16 +00:00
Simon Ser
6cbaf27c91 edid: switch to a statically allocated extension array 
The spec defines an upper bound for the extension block count,
which means we don't need to dynamically allocate the array. This
simplifies our logic a bit by removing an allocation error codepath.

The array is NULL-terminated, so EDID_MAX_BLOCK_COUNT is suitable
since it's the max number of extension blocks including the base
block, and the array doesn't include the base block.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-06-02 10:24:28 +02:00
Simon Ser
ef4661147e edid: validate extension block tag 
Skip any extension block with an unsupported tag to make sure we don't
return a bogus enum value to the user.

Signed-off-by: Simon Ser <contact@emersion.fr>
References: https://gitlab.freedesktop.org/emersion/libdisplay-info/-/merge_requests/16#note_1396993
 2022-05-25 11:32:59 +02:00
Simon Ser
1c0f7497f5 edid: add low-level API to enumerate extension blocks 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-05-09 14:33:58 +02:00
Simon Ser
882d34cebb edid: add vendor and product identification data 
Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-05-09 14:33:58 +02:00
Simon Ser
ad1e3f4167 Add very basic EDID functions 
Introduce an opaque struct di_edid to host EDID structures. Add
a function to create a di_edid (with basic size, header and
checksum validation). Add functions to fetch the EDID version and
revision.

This doesn't do much, but hopefully can be used as a fundation.

Signed-off-by: Simon Ser <contact@emersion.fr>
 2022-05-05 16:42:10 +02:00