Hello.
Marc St-Jean wrote:
>> > Fourth attempt at the serial driver patch for the PMC-Sierra MSP71xx
>>device.
I think you need to submit your patch to Andrew Morton since it
requires a patch from his tree.
OK, will do.
In fact, since the serial drivers are not maintained anymore, this seems
the only option.
>> > + /* The DesignWare APB UART has an Busy Detect
>>(0x07)
>> > + * interrupt meaning an LCR write attempt
>>occured while the
>> > + * UART was busy. The interrupt must be cleared
>>by reading
>> > + * the UART status register (USR) and the LCR
>>re-written. */
>> > + unsigned int status;
>> > + status = *(volatile u32
*)up->port.private_data;
>> > + serial_out(up, UART_LCR, up->lcr);
>> > +
>> > + handled = 1;
>> > +
>> > + end = NULL;
>> > } else if (end == NULL)
>> > end = l;
>> > return 0;
>> Still, shouldn't you be doing this in serial8250_timeout()
> No, the serial8250_timeout is for issue 1 at the top, this is for
> issue 2.
It's for lost interrupts, IIUC. They use anothe timeout handler for the
workaround...
This issue (2) is a completely new type of interrupt generated but the
DesignWare APB uart, it has nothing to do with lost interrupts.
Yeah, I just thought that the lost interrupts might be a "generic" issue.
>>also?
>>What IRQ numbers this UART is using, BTW?
> For the ports on the device they are 27 and 42. Is there any
significance
> that I'm not aware of?
Yeah, IRQ0 is treated as no IRQ by 8250, and in this case it falls
back to using serial8250_timeout() to handle "interrupts".
Good to know. It won't be affecting us then.
This may be overriden anyway...
>> Oops, your mailer went and did it again. :-)
> I'm completely giving up on Thunderbird,unless someone can point out
Ypu should have long ago. :-)
> the specific internal configuration items which needs a kick!
Only the attachments will work in the Mozilla kind mailer, AFAIK.
The last patch looked OK at last. :-)
The attachemnents appear to be MIME which is a no-no according the
The text/plain type attachments seem to be acceptable for the most
maintainers. This Mozilla can do, at least. :-)
linux FAQ at kernel.org. I guess I'll stick with /bin/mail.
Thanks,
Marc
WBR, Sergei
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