Hi Alan,
> From: linux-bluetooth-ow...@vger.kernel.org [mailto:linux-bluetooth-
> ow...@vger.kernel.org] On Behalf Of One Thousand Gnomes
> Sent: Thursday, May 05, 2016 8:49 PM
> To: Amitkumar Karwar
> Cc: linux-blueto...@vger.kernel.org; linux-kernel@vger.kernel.org;
> Ganapathi Bhat
> Subject: Re: [PATCH v10 1/3] Bluetooth: hci_uart: add prepare callbacks
> to hci_uart_proto structure.
>
> On Thu, 5 May 2016 08:08:20 -0700
> Amitkumar Karwar <akar...@marvell.com> wrote:
>
> > From: Ganapathi Bhat <gb...@marvell.com>
> >
> > The new callback is used to prepare the device before HCI becomes
> > ready. One can use this to download firmware if the download process
> > doesn't use HCI commands. Also recv_for_prepare callback is introduced
> > for receiving data from devices during prepare phase.
>
> If your device is not speaking HCI protocol then instead of hackig up
> the HCI ldisc would it not make more sense to have a tiny ldisc for your
> firmware loader instead of adding crap to the fast paths of what is
> currently a clean properly separated out interface ?
>
Below is the code change. It won't add any overhead for existing receive path.
- if (!test_bit(HCI_UART_PROTO_READY, &hu->flags))
+ if (!test_bit(HCI_UART_PROTO_READY, &hu->flags)) {
+ if (hu->proto->recv_for_prepare)
+ hu->proto->recv_for_prepare(hu, data, count);
return;
+ }
Regards,
Amitkumar
