From patchwork Fri Nov 16 13:44:42 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [09/14] ehci: keep the frame timer running in case the guest asked for frame list rollover interrupts Date: Fri, 16 Nov 2012 03:44:42 -0000 From: Gerd Hoffmann X-Patchwork-Id: 199610 Message-Id: <1353073487-19233-10-git-send-email-kraxel@redhat.com> To: qemu-devel@nongnu.org Cc: Gerd Hoffmann Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-ehci.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index 287a066..14269da 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 */