答复: 答复: 答复: 答复: Getting Started with freebios2!

[YhLu]

You got time for USB boot debug?

Do you have any idea about:
USB device control ed works well, but the bulk ed doesn't work, USB report
device not responding?

Does the code in baremetal work?
In the code, signature of cbw and csw define missed 0x.

Regards

YH

-----邮件原件-----
发件人: Steven James [mailto:[e-mail]] 
发送时间: 2004年5月27日 15:56
收件人: YhLu
抄送: ron minnich; Jay Miller; [e-mail]; LinuxBIOS
主题: Re: 答复: 答复: 答复: Getting Started with freebios2!

Greetings,

I'm finally getting dug out after being snowed under :-)

The spec is probably part of:
http://www.usb.org/developers/devclass_docs/usbcdc11.pdf

The communications class. I'm guessing it would be a subset of POTS modem
with a transparent data protocol. That would imply line contol on the
control ep, and either bulk transfer or isochronous pipe pairs for the
serial data.

It's a lot more involved than a simple UART, that's for sure.

On a side note, I THOUGHT I would have time by now to bang on the USB
boot. Hopefully, I'll be able to do more with it now (so I say :-)

As soon as I get up to speed on freebios2, I'll have a good test platform.

For the serial, UHCI and OHCI will be good. EHCI can likely be ignored for
the BIOS since fast devices are required to fall back and EHCI always has
one of UHCI or OHCI to handle low speed USB.

G'day,
sjames

-------------------------steven james, director of research, linux labs
... ........ ..... ....                    230 peachtree st nw ste 2701
the original linux labs                             atlanta.ga.us 30303
      -since 1995                              http://www.linuxlabs.com
                                              office & fax [phone]
-----------------------------------------------------------------------

On Thu, 27 May 2004, YhLu wrote:
> So the LinuxBIOS need to
> init USB controller
> create usb_dev to be serial.
> use usb_control_msg and usb_bulk_msg to talk with the serial device.
>
> What the USB type, OHCI or UCHI or EHCI??
>
> I wonder if some source code or documents that define No 3 above?
>
> Regards
>
> YH
>
> -----邮件原件-----
> 发件人: ron minnich [mailto:[e-mail]]
> 发送时间: 2004年5月27日 14:23
> 收件人: YhLu
> 抄送: Jay Miller; [e-mail]; LinuxBIOS
> 主题: Re: 答复: 答复: Getting Started with freebios2!
>
> On Thu, 27 May 2004, YhLu wrote:
> > Usb to serial ???
>
> yes, it's now needed :-(
>
> ron
> _______________________________________________
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

[Steven James]

Greetings,

I will have time over the weekend and hopefully next week. First, I'll
have to get my replacement board flashed up (but that shouldn't be too
bad).

The baremetal code did/does work on the flash device I have (Trekstore).

Probably the first thing for me is to see if FILO works with my device. It
may be a case of different interpretations of the spec, and just a need to
work out details like that.

G'day,
sjames

-------------------------steven james, director of research, linux labs
... ........ ..... ....                    230 peachtree st nw ste 2701
the original linux labs                             atlanta.ga.us 30303
      -since 1995                              http://www.linuxlabs.com
                                              office & fax [phone]
-----------------------------------------------------------------------

On Fri, 28 May 2004, YhLu wrote:
> You got time for USB boot debug?
>
> Do you have any idea about:
> USB device control ed works well, but the bulk ed doesn't work, USB report
> device not responding?
>
> Does the code in baremetal work?
> In the code, signature of cbw and csw define missed 0x.
>
> Regards
>
> YH
>
> -----邮件原件-----
> 发件人: Steven James [mailto:[e-mail]]
> 发送时间: 2004年5月27日 15:56
> 收件人: YhLu
> 抄送: ron minnich; Jay Miller; [e-mail]; LinuxBIOS
> 主题: Re: 答复: 答复: 答复: Getting Started with freebios2!
>
> Greetings,
>
> I'm finally getting dug out after being snowed under :-)
>
> The spec is probably part of:
> http://www.usb.org/developers/devclass_docs/usbcdc11.pdf
>
> The communications class. I'm guessing it would be a subset of POTS modem
> with a transparent data protocol. That would imply line contol on the
> control ep, and either bulk transfer or isochronous pipe pairs for the
> serial data.
>
> It's a lot more involved than a simple UART, that's for sure.
>
> On a side note, I THOUGHT I would have time by now to bang on the USB
> boot. Hopefully, I'll be able to do more with it now (so I say :-)
>
> As soon as I get up to speed on freebios2, I'll have a good test platform.
>
> For the serial, UHCI and OHCI will be good. EHCI can likely be ignored for
> the BIOS since fast devices are required to fall back and EHCI always has
> one of UHCI or OHCI to handle low speed USB.
>
> G'day,
> sjames
>
> -------------------------steven james, director of research, linux labs
> ... ........ ..... ....                    230 peachtree st nw ste 2701
> the original linux labs                             atlanta.ga.us 30303
>       -since 1995                              http://www.linuxlabs.com
>                                               office & fax [phone]
>
> On Thu, 27 May 2004, YhLu wrote:
> > So the LinuxBIOS need to
> > init USB controller
> > create usb_dev to be serial.
> > use usb_control_msg and usb_bulk_msg to talk with the serial device.
> >
> > What the USB type, OHCI or UCHI or EHCI??
> >
> > I wonder if some source code or documents that define No 3 above?
> >
> > Regards
> >
> > YH
> >
> > -----邮件原件-----
> > 发件人: ron minnich [mailto:[e-mail]]
> > 发送时间: 2004年5月27日 14:23
> > 收件人: YhLu
> > 抄送: Jay Miller; [e-mail]; LinuxBIOS
> > 主题: Re: 答复: 答复: Getting Started with freebios2!
> >
> > On Thu, 27 May 2004, YhLu wrote:
> > > Usb to serial ???
> >
> > yes, it's now needed :-(
> >
> > ron
> > _______________________________________________
> > Linuxbios mailing list
> > [e-mail]
> > http://www.clustermatic.org/mailman/listinfo/linuxbios