From 40862309a9d733cb0e878c79f477de003897b5d2 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 13 Nov 2012 17:20:05 +0100 Subject: ehci: keep the frame timer running in case the guest asked for frame list rollover interrupts Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-ehci.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'hw/usb/hcd-ehci.c') diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index 287a066d0a..14269dafed 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -964,6 +964,9 @@ static void ehci_opreg_write(void *ptr, hwaddr addr, case USBINTR: val &= USBINTR_MASK; + if (ehci_enabled(s) && (USBSTS_FLR & val)) { + qemu_bh_schedule(s->async_bh); + } break; case FRINDEX: @@ -2220,6 +2223,10 @@ static void ehci_frame_timer(void *opaque) ehci->async_stepdown = 0; } + if (ehci_enabled(ehci) && (ehci->usbintr & USBSTS_FLR)) { + need_timer++; + } + if (need_timer) { /* If we've raised int, we speed up the timer, so that we quickly * notice any new packets queued up in response */ -- cgit v1.2.1