[U-Boot] [PATCH] usb:composite:fix Provide function data when addressing device with only one interface

[Tom Rini <trini@ti.com>]

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On 03/05/2013 07:55 PM, Marek Vasut wrote:
> Dear Tom Rini,
> 
>> On Wed, Mar 06, 2013 at 12:54:45AM +0100, Marek Vasut wrote:
>>> Dear Tom Rini,
>>> 
>>>> On 03/05/2013 06:24 PM, Marek Vasut wrote:
>>>>> Dear Lukasz Majewski,
>>>>> 
>>>>>> Hi Marek,
>>>>>> 
>>>>>>> Dear Lukasz Majewski,
>>>>>>> 
>>>>>>>> This commit fixes problems with some non-standard
>>>>>>>> requests send with device address instead of
>>>>>>>> interface address (bmRequestType.Receipent field).
>>>>>>>> 
>>>>>>>> This happens with dfu-util (debian version: 0.5),
>>>>>>>> which address non standard requests (like
>>>>>>>> w_value=0x21 and bRequest=GET_DESCRIPTOR) to device.
>>>>>>>> Without this fix, the above request is STALLED, and
>>>>>>>> hence causes dfu-util to assume some standard
>>>>>>>> configuration (packet size = 1024B instead of 4096B)
>>>>>>>> In turn it displays following errors: Error
>>>>>>>> obtaining DFU functional descriptor Warning: Assuming
>>>>>>>> DFU version 1.0 Warning: Transfer size can not be
>>>>>>>> detected ... Warning: Trying default transfer size
>>>>>>>> 1024
>>>>>>>> 
>>>>>>>> This fix allows passing non-standard request to
>>>>>>>> function setup code, where it shall be handled.
>>>>>>>> 
>>>>>>>> Tested at: 	Trats (exynos4210) Tested with:DFU and
>>>>>>>> UMS gadgets
>>>>>>> 
>>>>>>> Can you please repost all the patches you want applied
>>>>>>> on u-boot-usb ? I'm completely lost in all this DFU
>>>>>>> stuff.
>>>>>> 
>>>>>> This is only one patch to replace patch done by
>>>>>> Pantelis:
>>>>>> 
>>>>>> Patch to replace (revert): dfu: Send correct DFU response
>>>>>> from composite_setup SHA1:
>>>>>> fef31049fa06e516945114195eb14ac3549d0ad2
>>>>>> 
>>>>>> And this shall be replaced with posted patch.
>>>>>> 
>>>>>> Another patches (with UMS gadget support - done by Piotr 
>>>>>> Wilczek), also shall be added to u-boot-usb tree:
>>>>>> 
>>>>>> http://patchwork.ozlabs.org/patch/219744/ 
>>>>>> http://patchwork.ozlabs.org/patch/219746/ 
>>>>>> http://patchwork.ozlabs.org/patch/219745/
>>>>> 
>>>>> Ok, please check the u-boot-usb ... if it's OK, I will send
>>>>> Tom a pullrq (finally). Tom, do you still accept those for
>>>>> .04 ?
>>>> 
>>>> As of earlier in the day it still had Pantelis' patch for
>>>> sending files larger than memory which breaks all
>>>> filesystem-based writes, so that needs to go.  Lukasz and I
>>>> are discussing how to deal with that.
>>> 
>>> IIRC I killed that patch.
>> 
>> In u-boot-usb/master currently: commit
>> a09f955db6ad7031bd715a615fb8b90d671a14d4 Author: Pantelis
>> Antoniou <panto@antoniou-consulting.com> Date:   Fri Nov 30
>> 08:01:12 2012 +0000
>> 
>> dfu: Support larger than memory transfers.
>> 
>> Is one of the two that needed to go.  The patch in this thread
>> replaced the other one that you did drop.
> 
> True, we now have the proper one applied to my understanding.

No, the concept needs re-working as non-filesystem can work in chunks
but files must be done all at once.

- -- 
Tom
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