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List:       uclinux
Subject:    Re: [UCLINUX] {announce} 990904 snapshot of uClinux-2.0.38.0
From:       "Vladimir A. Gurevich" <vgurevic () cisco ! com>
Date:       1999-09-07 8:25:29
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Hello Bernhard,

Bernhard Kuhn wrote:

> I just tried uClinux-2.0.38-990904 but with
> driver/char/68328serial.c taken from uClinux-2.0.38-990903.
> With that, everything seems to be fine again on Xcopilot. But, of course,
> Vladimir's patches are gone ...

Ok, what I've done, is that I reconstructed 68328serial.c for 2.0.38-990904
but WITHOUT my patches. After that I applied only the patches that I think
is essential:
     1) A fix that enables the driver to get all characters out of receive
        FIFO during a single receive interrupt. This is necessary if you
        want to run the serial port at high speeds on the real hardware.
        (Notice, that Xcopilot shows that the speed is about 5 BogoMIPS
        on my 300 MHz PII, but the real CPU shows about 1.40)

     2) A fix for change-speed() function. There was a bug that prevented
        it from seting B57600 and B115200 correctly.

No other changes were applied. One specific thing that I want to handle is
RTS/CTS. On M68EZ328ADS board CTS and RTS are not connected to DB-9 connector.
I have the code to ignore it, probably I'll create another config parameter.

Please, try the attached file with Xcopilot and let me know whether it works
or not (use uclinux-2.0.38-990904). Also make sure USE_INTS is #undef'ed.
If everything gose fine, I'l submit this as a good starting point.

Best regards,
Vladimir

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Vladimir Gurevich  |    :|||:      :|||:    | fax           408-527-1713
Software Engineer  | .:|||||||:..:|||||||:. |
    NUBU/DIAL      |      CiscoSystems      | e-mail  vgurevic@cisco.com
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