Hello Alex,
I am planning to push some code (probably next week) to add support for
SerialSetAttributes()/SerialSetControl()/SerialGetControl() in
EmbeddedPkg/SerialDxe through a new library (probably 'SerialPortExtLib'). I
have this change in our internal repository for a while, I just need to port
it to the BeagleBoard and push it.
Otherwise as temporary workaround you could change the
Omap35xxPkg/Library/SerialPortLib to set your needed baud rate in the
function SerialPortInitialize().
Thanks,
Olivier
From: Hutcheson, Alex M. [mailto:alex.m.hutche...@saic.com]
Sent: 08 August 2012 19:55
To: edk2-devel@lists.sourceforge.net
Subject: [edk2] Serial Protocol Implementation in BeagleBoardPkg
Hello,
I am running the UEFI build from the BeagleBoardPkg on my BeagleBoard, and I
am trying to use the EFI_SERIAL_IO_PROTOCOL to communicate via the RS-232
connection on the board. I am connecting to a device with a lower baud rate
than the 115200 baud default, so I am calling the
SERIAL_IO_PROTOCOL->SetAttributes function to alter the baud rate.
However, this function fails with the EFI_UNSUPPORTED error code, which I
assume means it is not implemented.
Currently, I am making due with some low-level hacking (setting the UART
register bits from within my application), but I would be interested in
using my solution to implement SetAttributes so other people can benefit.
However, I am not that familiar with the overall architecture of TianoCore,
and I can't figure out how I would go about doing this.
What files would I need to edit in order to allow the UART devices to
support this function from the SERIAL_IO_PROTOCOL?
Thanks,
Alex
Alex Hutcheson | SAIC
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