On Do, 2015-07-16 at 17:47 +0200, Juergen Gross wrote:
> In order to avoid having to poll for the result of an iso transfer
> add the possibility to request the "complete" callback which is being
> used for bulk transfers as well.
Sorry for the late notice (didn't do much usb coding recently and forgot
about it): We actually _have_ a notification mechanism already:
usb_wakeup(USBEndpoint *ep, int streamid). That will trigger a
USBPortOps->wakeup callback in the host adapter emulation.
So, the usb-host change should be as simple as this:
--- a/hw/usb/host-libusb.c
+++ b/hw/usb/host-libusb.c
@@ -451,6 +451,7 @@ static void usb_host_req_complete_iso(struct
libusb_transfer *transfer)
}
if (xfer->ring->ep->pid == USB_TOKEN_IN) {
QTAILQ_INSERT_TAIL(&xfer->ring->copy, xfer, next);
+ usb_wakeup(xfer->ring->ep, 0);
} else {
QTAILQ_INSERT_TAIL(&xfer->ring->unused, xfer, next);
}
cheers,
Gerd
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