[U-Boot] [PATCH v2 1/3] usb, dfu: extract flush code into seperate function

[Lukasz Majewski <l.majewski@samsung.com>]

Hi Marek,

> On Tuesday, March 18, 2014 at 07:51:05 AM, Lukasz Majewski wrote:
> > Hi Marek,
> > 
> > > On Monday, March 17, 2014 at 11:56:16 AM, Heiko Schocher wrote:
> > > > move the flushing code into an extra function dfu_flush(),
> > > > so it can be used from other code.
> > > > 
> > > > Signed-off-by: Heiko Schocher <hs@denx.de>
> > > > Cc: Lukasz Majewski <l.majewski@samsung.com>
> > > > Cc: Kyungmin Park <kyungmin.park@samsung.com>
> > > > Cc: Marek Vasut <marex@denx.de>
> > > > Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
> > > 
> > > [...]
> > > 
> > > > @@ -199,23 +221,7 @@ int dfu_write(struct dfu_entity *dfu, void
> > > > *buf, int size, int blk_seq_num)
> > > > 
> > > >  	/* end? */
> > > >  	if (size == 0) {
> > > > 
> > > > -		/* Now try and flush to the medium if needed.
> > > > */
> > > > -		if (dfu->flush_medium)
> > > > -			ret = dfu->flush_medium(dfu);
> > > > -		printf("\nDFU complete CRC32: 0x%08x\n",
> > > > dfu->crc); -
> > > > -		/* clear everything */
> > > > -		dfu_free_buf();
> > > > -		dfu->crc = 0;
> > > > -		dfu->offset = 0;
> > > > -		dfu->i_blk_seq_num = 0;
> > > > -		dfu->i_buf_start = dfu_buf;
> > > > -		dfu->i_buf_end = dfu_buf;
> > > > -		dfu->i_buf = dfu->i_buf_start;
> > > > -
> > > > -		dfu->inited = 0;
> > > > -
> > > > -	}
> > > > +		ret = dfu_flush(dfu, buf, size, blk_seq_num);
> > > 
> > > This seems broken, at least because you didn't close the opened
> > > brace (see 'if (size == 0) {' .... I can fix this up when
> > > applying.
> > 
> > I was prepared to pull those patches to u-boot-dfu repo today and
> > test them :-).
> > 
> > Afterwards, I would send PR to Tom.
> > 
> > Are you OK with this?
> 
> Doesn't -dfu go through -usb ? ;-) 

As fair as I remember the dfu code from ./drivers/dfu/* shall go via
u-boot-dfu tree directly to Tom.

> Or do you want to send to Tom
> directly ? Either way WFM.

After writing the other message you waited for a response less than one
minute :-).

> Nonetheless, I picked the patches via
> -usb, they're in master now.

I've just tested them and they doesn't cause any regression.

Would you be so kind and apply one more patch, which was supposed to
go with u-boot-dfu PR (this patch waits for submission from 21.02.2014)?

http://patchwork.ozlabs.org/patch/322450/

It is solely drivers/dfu/dfu_mmc.c related.

And I don't want to send PR to Tom with only one patch included.

> 
> > > Do you want this in 2014.04 or in -next ?
> > 
> > After testing I would go for 2014.04, if Tom doesn't mind. All in
> > all it "fixes" the DFU state machine - by adding missing states. Up
> > till now we had short cut in the DFU state machine.
> 
> OK
> 
> Best regards,
> Marek Vasut



-- 
Best regards,

Lukasz Majewski

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