Hi Andre,
On Fri, 22 Mar 2019 at 19:32, Andre Przywara andre.przywara@arm.com wrote:
The character set used by U-Boot's built-in fonts is the old "code page 437" (from the original IBM PC). However people would probably expect UTF-8 on a terminal these days, the UEFI code definitely does.
Provide a conversion routine to convert a UTF-8 byte stream into a CP437 character code. This uses a combination of arrays and switch/case statements to provide an efficient way of translating the large Unicode character range to the 8 bits used for CP437.
This fixes UEFI display on the DM_VIDEO console, which were garbled for any non-ASCII characters, for instance for the block graphic characters used by Grub to display the menu.
Signed-off-by: Andre Przywara andre.przywara@arm.com
drivers/video/Makefile | 1 + drivers/video/utf8_cp437.c | 170 ++++++++++++++++++++++++++++++++++++++ drivers/video/vidconsole-uclass.c | 8 +- include/video_console.h | 9 ++ 4 files changed, 186 insertions(+), 2 deletions(-) create mode 100644 drivers/video/utf8_cp437.c
OMG unicode comes to U-Boot. This might be the beginning of the end.
Can we make this a Kconfig option to avoid increasing code size? We can imply it when EFI is enabled.
Regards, Simon