Commit Graph

7 Commits

Author SHA1 Message Date
Simon Glass
00cf1167bb edid: Add a function to read detailed monitor timings
For digital displays (such as EDP LCDs) we would like to read the EDID
information and use that to set display timings. Provide a function to do
this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-05-13 09:24:10 -07:00
Hans de Goede
d2fabdc71c 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>
2015-01-14 14:56:38 +01:00
Hans de Goede
e745d064b4 edid: Add an edid_check_checksum() helper function
Add a helper function to check the checksum of an EDID data block.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
2015-01-14 14:56:38 +01:00
Hans de Goede
b7ce12ddd7 videomodes: Add video_edid_dtd_to_ctfb_res_modes helper function
Add a video_edid_dtd_to_ctfb_res_modes helper function to convert an EDID
detailed timing to a struct ctfb_res_modes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
2015-01-14 14:56:38 +01:00
Christian Gmeiner
1dc793dd2b edid: rename struct member to fix two EDID_* macros
Without this change EDID_DETAILED_TIMING_VSYNC_OFFSET
and EDID_DETAILED_TIMING_VSYNC_PULSE_WIDTH macros can
not be used (compile error).
The fix is quite trivial: rename struct member to the
expected name.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2013-08-12 23:32:20 +02:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Tom Wai-Hong Tam
d46b5f7dcb edid: Library of EDID decode and print
This implements a library for accessing EDID data from an LCD panel.
This is used to obtain information about the panel such as its
resolution and type.

This is a tidied-up version of the original code pulled from
https://github.com/ynezz/u-boot-edid.

The changes we made are:
 - removed bit fields in the struct;
 - removed endianness cases in the struct;
 - fixed some wrong definitions;
 - fixed to fit 80 columns;
 - fixed some code styles.

Signed-off-by: Tom Wai-Hong Tam <waihong@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-11 13:17:34 -07:00