[Qemu-devel] [PATCH 05/18] Bug #757654: UHCI fails to signal stall response patch

[Gerd Hoffmann <kraxel@redhat.com>]

From: Jan Vesely <jano.vesely@gmail.com>

UHCI host controller status register indicates error and
an interrupt is triggered on BABBLE and STALL errors.

Signed-off-by: Jan Vesely <jano.vesely@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb-uhci.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/hw/usb-uhci.c b/hw/usb-uhci.c
index a65e0b3..1e9c1e7 100644
--- a/hw/usb-uhci.c
+++ b/hw/usb-uhci.c
@@ -702,11 +702,15 @@ out:
     case USB_RET_STALL:
         td->ctrl |= TD_CTRL_STALL;
         td->ctrl &= ~TD_CTRL_ACTIVE;
+        s->status |= UHCI_STS_USBERR;
+        uhci_update_irq(s);
         return 1;
 
     case USB_RET_BABBLE:
         td->ctrl |= TD_CTRL_BABBLE | TD_CTRL_STALL;
         td->ctrl &= ~TD_CTRL_ACTIVE;
+        s->status |= UHCI_STS_USBERR;
+        uhci_update_irq(s);
         /* frame interrupted */
         return -1;
 
-- 
1.7.1