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-rw-r--r--hw/usb-ehci.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/hw/usb-ehci.c b/hw/usb-ehci.c
index 048eb7663..b95773f5b 100644
--- a/hw/usb-ehci.c
+++ b/hw/usb-ehci.c
@@ -1510,11 +1510,27 @@ static int ehci_process_itd(EHCIState *ehci,
/* IN */
set_field(&itd->transact[i], ret, ITD_XACT_LENGTH);
}
-
- if (itd->transact[i] & ITD_XACT_IOC) {
- ehci_record_interrupt(ehci, USBSTS_INT);
+ } else {
+ switch (ret) {
+ default:
+ fprintf(stderr, "Unexpected iso usb result: %d\n", ret);
+ /* Fall through */
+ case USB_RET_NODEV:
+ /* 3.3.2: XACTERR is only allowed on IN transactions */
+ if (dir) {
+ itd->transact[i] |= ITD_XACT_XACTERR;
+ ehci_record_interrupt(ehci, USBSTS_ERRINT);
+ }
+ break;
+ case USB_RET_BABBLE:
+ itd->transact[i] |= ITD_XACT_BABBLE;
+ ehci_record_interrupt(ehci, USBSTS_ERRINT);
+ break;
}
}
+ if (itd->transact[i] & ITD_XACT_IOC) {
+ ehci_record_interrupt(ehci, USBSTS_INT);
+ }
itd->transact[i] &= ~ITD_XACT_ACTIVE;
}
}