Re: [Qemu-devel] Ping [PATCH 0/2] Add TPCI200 and IP-Octal 232 IndustryPack emulation

[Alberto Garcia <agarcia@igalia.com>]

On Fri, Oct 05, 2012 at 04:24:08PM +0000, Blue Swirl wrote:

> Endianness looks buggy, there's no way to turn off big endian mode

I double checked the documentation and I think you're right, I can
update the patch. Thanks for pointing it out.

> DEVICE_NATIVE_ENDIAN should probably be DEVICE_LITTLE_ENDIAN.

Where? In BAR0?

> Indentation of braces in switch cases looks strange.

I tried to follow the CODING_STYLE file, but I might have got it
wrong, I can change that.

> Pointers to HW documentation and description how to test (or qtests)
> would be nice.

The documentation is available online:

http://www.tews.com/Products/ArticleGroup/TPCI/TPCI200.html
http://www.mvme.com/manuals/IP-OCTAL-232_UM.pdf
http://www.alldatasheet.com/datasheet-pdf/pdf/19123/PHILIPS/SCC2698B.html

I'm not familiar with qtests, should I take a look at it?

In my blog post (see previous e-mail) there's a brief explanation on
how to test it. I can provide with a compiled Linux kernel with the
necessary drivers for the guest system if it helps.

A quick way to test it is to redirect one of the IP-Octal serial ports
to a pty in the host and open minicom in both sides.

> I'd suppose addressing devices in the bus could be implemented
> more efficiently with better use of memory API, now some of it is
> reimplemented. Maybe Avi can propose something?

I'm open to suggestions.

And answering Andreas, yes, the device could be renamed as
'ipoctal232' :)

Thanks,

Berto