Question on USB gadget device driver for mpc 8272 on linux 2.6.14.

Question on USB gadget device driver for mpc 8272 on linux 2.6.14.

[Jonathan Qiang]

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Hi, all
 
Currently, I am doing on the USB gadget device driver for mpc8272, I
already got some packets on interruption route when my board in which
mpc82xx settled connect to Host.
But the SOF is always generated as the first interruption source. When
plugged USB cable in HOST, the USB controller will be set to reset
(USBER is [0x308]), and after reset, the interruption source event
changes its status to [0x108], which means running on IDLE and SOF.  Why
It is not IN token?
I already disabled Frame timer when I probe the USB gadget controller. 

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Re: Question on USB gadget device driver for mpc 8272 on linux 2.6.14.

[Vitaly Bordug]

Jonathan,

I have implemented the PQ2 usb-serial functionality a while ago, but the code needs a lot of cleanup, which is sometimes very tricky due to the tight timings required by this device. If you are interested, I can try to find the patch...

On Fri, 27 Jan 2006 11:45:39 +1100
"Jonathan Qiang" <jonathan@haliplex.com.au> wrote:

> Hi, all
>  
> Currently, I am doing on the USB gadget device driver for mpc8272, I
> already got some packets on interruption route when my board in which
> mpc82xx settled connect to Host.
> But the SOF is always generated as the first interruption source. When
> plugged USB cable in HOST, the USB controller will be set to reset
> (USBER is [0x308]), and after reset, the interruption source event
> changes its status to [0x108], which means running on IDLE and SOF.  Why
> It is not IN token?
> I already disabled Frame timer when I probe the USB gadget controller. 


-- 
Sincerely, 
Vitaly

Re: Question on USB gadget device driver for mpc 8272 on linux 2.6.14.

[Mike Rapoport]

Vitaly,
Can you send me this patch?


Vitaly Bordug wrote:

>Jonathan,
>
>I have implemented the PQ2 usb-serial functionality a while ago, but the code needs a lot of cleanup, which is sometimes very tricky due to the tight timings required by this device. If you are interested, I can try to find the patch...
>
>On Fri, 27 Jan 2006 11:45:39 +1100
>"Jonathan Qiang" <jonathan@haliplex.com.au> wrote:
>
>  
>
>>Hi, all
>> 
>>Currently, I am doing on the USB gadget device driver for mpc8272, I
>>already got some packets on interruption route when my board in which
>>mpc82xx settled connect to Host.
>>But the SOF is always generated as the first interruption source. When
>>plugged USB cable in HOST, the USB controller will be set to reset
>>(USBER is [0x308]), and after reset, the interruption source event
>>changes its status to [0x108], which means running on IDLE and SOF.  Why
>>It is not IN token?
>>I already disabled Frame timer when I probe the USB gadget controller. 
>>    
>>
>
>
>  
>

-- 
Sincerely yours,
Mike Rapoport

Re: Question on USB gadget device driver for mpc 8272 on linux 2.6.14.

[Vitaly Bordug]

On Mon, 30 Jan 2006 13:24:29 +0200
Mike Rapoport <mike@compulab.co.il> wrote:

> Vitaly,
> Can you send me this patch?
> 
Heh, if there is such a interest, I guess the driver worths to be slightly scrubbed and rebased against current kernel git. Then you could make it available in sf.net for others that are concerned.

But you need to wait a little...
> 
> Vitaly Bordug wrote:
> 
> >Jonathan,
> >
> >I have implemented the PQ2 usb-serial functionality a while ago, but the code needs a lot of cleanup, which is sometimes very tricky due to the tight timings required by this device. If you are interested, I can try to find the patch...
> >
> >On Fri, 27 Jan 2006 11:45:39 +1100
> >"Jonathan Qiang" <jonathan@haliplex.com.au> wrote:
> >
> >  
> >
> >>Hi, all
> >> 
> >>Currently, I am doing on the USB gadget device driver for mpc8272, I
> >>already got some packets on interruption route when my board in which
> >>mpc82xx settled connect to Host.
> >>But the SOF is always generated as the first interruption source. When
> >>plugged USB cable in HOST, the USB controller will be set to reset
> >>(USBER is [0x308]), and after reset, the interruption source event
> >>changes its status to [0x108], which means running on IDLE and SOF.  Why
> >>It is not IN token?
> >>I already disabled Frame timer when I probe the USB gadget controller. 
> >>    
> >>
> >
> >
> >  
> >
> 
> -- 
> Sincerely yours,
> Mike Rapoport
> 
> 
> 


-- 
Sincerely, 
Vitaly