diff options
| -rw-r--r-- | hw/usb/hcd-ehci.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index efa1d778e3..8da4b6a6d2 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -1347,6 +1347,9 @@ static void ehci_execute_complete(EHCIQueue *q) if (tbytes) { /* 4.15.1.2 must raise int on a short input packet */ ehci_raise_irq(q->ehci, USBSTS_INT); + if (q->async) { + q->ehci->int_req_by_async = true; + } } } else { tbytes = 0; @@ -2337,7 +2340,7 @@ static void ehci_frame_timer(void *opaque) /* If we've raised int, we speed up the timer, so that we quickly * notice any new packets queued up in response */ if (ehci->int_req_by_async && (ehci->usbsts & USBSTS_INT)) { - expire_time = t_now + get_ticks_per_sec() / (FRAME_TIMER_FREQ * 2); + expire_time = t_now + get_ticks_per_sec() / (FRAME_TIMER_FREQ * 4); ehci->int_req_by_async = false; } else { expire_time = t_now + (get_ticks_per_sec() |