Re: [PATCHv7 0/5] Common Mailbox Framework

From: Jassi Brar
Date: Mon Jun 30 2014 - 12:22:40 EST


On 30 June 2014 21:46, Lubomir Rintel <lkundrak@xxxxx> wrote:
> Hi Jassi,
>
> On Thu, 2014-06-12 at 22:28 +0530, Jassi Brar wrote:
>> Hello,
>> Here is the next revision of Mailbox framwork.
>
> I'm wondering whether you keep a Git tree with the framework we could
> keep the Raspberry Pi mailbox driver based on (bcm2835-mbox)?
>
> Also, from look at the API it does not seem to me that it's possible to
> synchronously (that is without a tx_done callback) collect a response
> when a message is sent with tx_block enabled. Equivalent to this: [1]
>
Thanks, good catch.

Could you please give this a try...

diff --git a/drivers/mailbox/mailbox.c b/drivers/mailbox/mailbox.c
index afa63cd..4059602 100644
--- a/drivers/mailbox/mailbox.c
+++ b/drivers/mailbox/mailbox.c
@@ -101,10 +101,11 @@ static void tx_tick(struct mbox_chan *chan, int r)
_msg_submit(chan);

/* Notify the client */
+ if (mssg && chan->cl->tx_done)
+ chan->cl->tx_done(chan->cl, mssg, r);
+
if (chan->cl->tx_block)
complete(&chan->tx_complete);
- else if (mssg && chan->cl->tx_done)
- chan->cl->tx_done(chan->cl, mssg, r);
}

static void poll_txdone(unsigned long data)

-jassi
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