tree 762859eddc75af8e3e2d3bd7d3b6208769e0dc5c
parent 73c0d14ad1be468782e52ec9ac4bdca58b60cf87
author Heinrich Schuchardt <xypron.glpk@gmx.de> 1537385508 +0200
committer Anatolij Gustschin <agust@denx.de> 1538151939 +0200

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>