summaryrefslogtreecommitdiff
path: root/doc/README.video
AgeCommit message (Collapse)Author
2018-12-28video: Add information about using TrueType fontsSimon Glass
U-Boot supports using TrueType fonts on the console, which is useful for presenting a nice UI to users, e.g. for system recovery. Add information about how to compile this on ARM platforms, since this is not obvious. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2016-02-06Use correct spelling of "U-Boot"Bin Meng
Correct spelling of "U-Boot" shall be used in all written text (documentation, comments in source files etc.). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
2015-08-14sunxi: display: Add overscan correctionHans de Goede
Add support for making the visual area of the framebuffer smaller and drawing a black border around it. This is intended for use with overscanning monitors (esp. with composite video out), to avoid part of the picture being invisible. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> Acked-by: Anatolij Gustschin <agust@denx.de>
2015-08-08sunxi: display: Add composite video out supportHans de Goede
Add composite video out support. This only gets enabled on the Mele M3 for now, since that is were it was tested. It will be enabled on more boards after testing. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-14sunxi: video: Add a hpd_delay parameter to configure hpd delayHans de Goede
In some extreme cases it may be necessary to wait 1.5 seconds or more for a hpd signal to show up (and be able to read edid info), but we do not want to penalize all headless boots with an extra second boot delay, so add a hpd_delay parameter which can be set through the video-mode env. variable. While at it raise the default from 300ms to 500ms as 300 may very well be too low in many cases. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-14sunxi: video: Fallback from HDMI to VGA on boards with VGAHans de Goede
If a board has no LCD, but does have VGA fallback to VGA when no HDMI cable is connected (unless hpd=0). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2015-01-14sunxi: video: Add lcd output supportHans de Goede
Add lcd output support, see the new Kconfig entries and doc/README.video for how to enable / configure this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
2014-04-18powerpc: remove genietv board supportMasahiro Yamada
Enough time has passed since this board was moved to Orphan. Remove. - Remove board/genietv/* - Remove include/configs/GENIETV.h - Clean-up if defined(CONFIG_GENIETV) - Move the entry from boards.cfg to doc/README.scrapyard Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2011-04-28video: parse the video-mode environment variableTimur Tabi
Add function video_get_video_mode(), which parses the "video-mode" environment variable and returns each of its components. The format matches the video= command-line option used for Linux: video-mode=<driver>:<xres>x<yres>-<depth>@<freq><,option=string> <driver> The video driver, ignored by U-Boot <xres> The X resolution (in pixels) to use. <yres> The Y resolution (in pixels) to use. <depth> The color depth (in bits) to use. <freq> The frequency (in Hz) to use. <options> A comma-separated list of device-specific options Signed-off-by: Timur Tabi <timur@freescale.com>
2008-05-21Big white-space cleanup.Wolfgang Denk
This commit gets rid of a huge amount of silly white-space issues. Especially, all sequences of SPACEs followed by TAB characters get removed (unless they appear in print statements). Also remove all embedded "vim:" and "vi:" statements which hide indentation problems. Signed-off-by: Wolfgang Denk <wd@denx.de>
2002-11-03Initial revisionwdenk