On Sat, Sep 3, 2022 at 3:07 PM Alexander Aring <aahringo@xxxxxxxxxx> wrote:
>
> Hi,
>
> On Sat, Sep 3, 2022 at 12:06 PM Miquel Raynal <miquel.raynal@xxxxxxxxxxx> wrote:
> ...
> >
> > On the Tx side, when sending eg. an association request or an
> > association response, I must expect and wait for an ack. This is
> > what I am struggling to do. How can I know that a frame which I just
> > transmitted has been acked? Bonus points, how can I do that in such a
> > way that it will work with other devices? (hints below)
> >
> > > AACK will send a back if a frame with ack request bit was received.
> > >
> > > > say in a commit) I have seen no further updates about it so I guess
> > > > it's still not available. I don't see any other way to know if a
> > > > frame's ack has been received or not reliably.
> > >
> > > You implemented it for the at86rf230 driver (the spi one which is what
> > > also atusb uses). You implemented the
> > >
> > > ctx->trac = IEEE802154_NO_ACK;
> > >
> > > which signals the upper layer that if the ack request bit is set, that
> > > there was no ack.
> > >
> > > But yea, there is a missing feature for atusb yet which requires
> > > firmware changes as well.
> >
> > :'(
>
> There is a sequence handling in tx done on atusb firmware and I think
> it should be pretty easy to add a byte for trac status.
>
> diff --git a/atusb/fw/mac.c b/atusb/fw/mac.c
> index 835002c..156bd95 100644
> --- a/atusb/fw/mac.c
> +++ b/atusb/fw/mac.c
> @@ -116,7 +116,7 @@ static void receive_frame(void)
>
> static bool handle_irq(void)
> {
> - uint8_t irq;
> + uint8_t irq, data[2];
>
> irq = reg_read(REG_IRQ_STATUS);
> if (!(irq & IRQ_TRX_END))
> @@ -124,7 +124,15 @@ static bool handle_irq(void)
>
> if (txing) {
> if (eps[1].state == EP_IDLE) {
> - usb_send(&eps[1], &this_seq, 1, tx_ack_done, NULL);
> + data[0] = tx_ack_done;
> +
> + spi_begin();
> + spi_io(REG_TRX_STATE);
> +
> + data[1] = spi_recv();
> + spi_end();
data[1] = reg_read(REG_TRX_STATE) as seen above for REG_IRQ_STATUS
would be better here...
- Alex
