Commit graph

12 commits

Author SHA1 Message Date
Marek Vasut
e63168a9ff video: Factor out vidconsole_put_string()
Pull the vidconsole_put_string() function from DM tests, make it
available to e.g. boards that want to display information on the
LCD on boot.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2019-05-20 12:00:05 +02:00
Heinrich Schuchardt
662f381aad dm: video: support more escape sequences
The EFI subsystems needs to know the size of the terminal. If the
environment variable

	stdout = serial,vidconsole

this size cannot be read from the video console. So the EFI subsystem
sends escape sequences to read the size. With this patch we get support
for the following escape sequences:

ESC "7"		Save cursor position
ESC "8"		Restore cursor position

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-09-28 18:25:39 +02:00
Heinrich Schuchardt
5cb4860f3d dm: video: adjust struct vidconsole_priv description
The third component of struct vidconsole_priv is ycur.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2018-09-28 18:25:18 +02:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
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>
2018-05-07 09:34:12 -04:00
Heinrich Schuchardt
9ffa4d12a8 dm: video: support increased intensity (bold)
Support special rendition code 0 - reset attributes.
Support special rendition code 1 - increased intensity (bold).

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-03-06 10:05:49 +01:00
Heinrich Schuchardt
5c30fbb8ec dm: video: use constants to refer to colors
Use constants to refer to colors.
Adjust initialization of foreground and background color to avoid
setting reserved bits.
Consistently u32 instead of unsigned for color bit mask.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-03-06 10:03:20 +01:00
Rob Clark
a085aa1f27 dm: video: Add basic ANSI escape sequence support
Really just the subset that is needed by efi_console.  Perhaps more will
be added later, for example color support would be useful to implement
efi_cout_set_attribute().

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-29 17:53:21 +02:00
Simon Glass
7b9f7e445e video: Provide a backspace method
With proportional fonts the vidconsole uclass cannot itself erase the
previous character. Provide an optional method so that the driver can
handle this operation.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30 10:55:37 +01:00
Simon Glass
58c733a70f video: Provide a signal when a new console line is started
When we start a new line (due to the user pressing return), signal this to
the driver so that it can flush its buffer of character positions.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30 10:55:27 +01:00
Simon Glass
c5b77d01d1 video: Provide a left margin for the text console
Allow the left margin to be set so that text does not have to be right up
against the left side. On some panels this makes it hard to read.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-30 10:55:15 +01:00
Simon Glass
f266178698 video: Use fractional units for X coordinates
With anti-aliased fonts we need a more fine-grained horizontal position
than a single pixel. Characters can be positioned to start part-way through
a pixel, with anti-aliasing (greyscale edges) taking care of the visual
effect.

To cope with this, use fractional units (1/256 pixel) for horizontal
positions in the text console.

Signed-off-by: Simon Glass <sjg@chromium.org>
[agust: rebased]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
2016-01-30 10:53:26 +01:00
Simon Glass
83510766c9 dm: video: Add a uclass for the text console
The existing LCD/video interface suffers from conflating the bitmap display
with text output on that display. As a result the implementation is more
complex than it needs to me.

We can support multiple text console drivers. Create a separate uclass to
support this, with its own API.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
2016-01-20 19:10:15 -07:00