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From: Jan Vesely <jano.vesely@gmail.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: qemu-trivial@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Bug #757654: UHCI fails to signal stall response patch
Date: Mon, 9 May 2011 12:16:50 +0200	[thread overview]
Message-ID: <BANLkTimMGis4pBnZvbP=KwKtaOp8rDCfBQ@mail.gmail.com> (raw)
In-Reply-To: <4DC79DEC.50401@redhat.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>
---
 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;

-- 
1.7.3.4

  reply	other threads:[~2011-05-09 10:16 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-15 20:57 [Qemu-devel] Bug #757654: UHCI fails to signal stall response patch Jan Vesely
2011-04-16  6:33 ` Brad Hards
2011-04-16  7:29   ` Jan Vesely
2011-04-16  8:40 ` [Qemu-devel] [Qemu-trivial] " Stefan Hajnoczi
2011-05-05 12:05 ` [Qemu-devel] " Gerd Hoffmann
2011-05-06  8:07   ` Jan Vesely
2011-05-09  7:55     ` Gerd Hoffmann
2011-05-09 10:16       ` Jan Vesely [this message]
2011-05-09 11:43         ` Gerd Hoffmann
2011-05-11 11:33           ` Jan Vesely
2011-05-12  9:28             ` Gerd Hoffmann

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