diff options
Diffstat (limited to 'hw/usb/hcd-uhci.c')
| -rw-r--r-- | hw/usb/hcd-uhci.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c index cdc8bc3fba..c2f08e3735 100644 --- a/hw/usb/hcd-uhci.c +++ b/hw/usb/hcd-uhci.c @@ -826,8 +826,16 @@ static int uhci_handle_td(UHCIState *s, uint32_t addr, UHCI_TD *td, USBEndpoint *ep; /* Is active ? */ - if (!(td->ctrl & TD_CTRL_ACTIVE)) + if (!(td->ctrl & TD_CTRL_ACTIVE)) { + /* + * ehci11d spec page 22: "Even if the Active bit in the TD is already + * cleared when the TD is fetched ... an IOC interrupt is generated" + */ + if (td->ctrl & TD_CTRL_IOC) { + *int_mask |= 0x01; + } return TD_RESULT_NEXT_QH; + } async = uhci_async_find_td(s, addr, td); if (async) { |