Note that this doesn't differentiate (due to lack of information in
video_priv) between different possible component orders for 32bpp.
But the main user at this point is efi_loader, and GOP expects xBGR
so any video drivers that this is incorrect for already have problems.
(Also, conveniently, this matches what simple-framebuffer bindings
expect for kernels that use the simple-framebuffer DT binding to
take over the bootloader display.)

Signed-off-by: Rob Clark <robdclark@gmail.com>

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>

Content can come to screen via putc() and we cannot always rely on
updates ending with a puts().  This is the case with efi_console output
to vidconsole.  Fixes corruption with Shell.efi.

Signed-off-by: Rob Clark <robdclark@gmail.com>

We should sync the display (e.g. flush cache) when backspace is pressed
to ensure that the character is erased correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1

For vidconsole_post_probe(), it is common coding style to let a
probe method return the value of a register function.

The others will become simple wrapper functions.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>

Use this new function in places where it simplifies the code.

Signed-off-by: Simon Glass <sjg@chromium.org>

This helps keep the display consistent. puts() is used when printing the
prompt, so is a useful way to make sure the current display contents is
visible.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tom Warren <twarren@nvidia.com>

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>

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>

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>