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authorHans de Goede <hdegoede@redhat.com>2013-10-08 21:58:11 +0200
committerGerd Hoffmann <kraxel@redhat.com>2013-10-22 16:28:49 +0200
commit582d6f4aba0ff24604a82b48aee2db17b100d4b4 (patch)
tree525def6e03c0e8a6ae2b6ad93fdb2301544ceed6
parent8de1838afed4b5b05d18cc42a3e5a6fe9b19f29b (diff)
downloadqemu-582d6f4aba0ff24604a82b48aee2db17b100d4b4.zip
usb-hcd-xhci: Report completion of active transfer with CC_STOPPED on ep stop
As we should per the XHCI spec "4.6.9 Stop Endpoint". Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
-rw-r--r--hw/usb/hcd-xhci.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 7cf89ceab7..0131151e93 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -505,6 +505,7 @@ static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid,
unsigned int epid, unsigned int streamid);
static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid,
unsigned int epid);
+static void xhci_xfer_report(XHCITransfer *xfer);
static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v);
static void xhci_write_event(XHCIState *xhci, XHCIEvent *event, int v);
static USBEndpoint *xhci_epid_to_usbep(XHCIState *xhci,
@@ -1302,10 +1303,15 @@ static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid,
return CC_SUCCESS;
}
-static int xhci_ep_nuke_one_xfer(XHCITransfer *t)
+static int xhci_ep_nuke_one_xfer(XHCITransfer *t, TRBCCode report)
{
int killed = 0;
+ if (report && (t->running_async || t->running_retry)) {
+ t->status = report;
+ xhci_xfer_report(t);
+ }
+
if (t->running_async) {
usb_cancel_packet(&t->packet);
t->running_async = 0;
@@ -1318,6 +1324,7 @@ static int xhci_ep_nuke_one_xfer(XHCITransfer *t)
timer_del(epctx->kick_timer);
}
t->running_retry = 0;
+ killed = 1;
}
if (t->trbs) {
g_free(t->trbs);
@@ -1330,7 +1337,7 @@ static int xhci_ep_nuke_one_xfer(XHCITransfer *t)
}
static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid,
- unsigned int epid)
+ unsigned int epid, TRBCCode report)
{
XHCISlot *slot;
XHCIEPContext *epctx;
@@ -1351,7 +1358,10 @@ static int xhci_ep_nuke_xfers(XHCIState *xhci, unsigned int slotid,
xferi = epctx->next_xfer;
for (i = 0; i < TD_QUEUE; i++) {
- killed += xhci_ep_nuke_one_xfer(&epctx->transfers[xferi]);
+ killed += xhci_ep_nuke_one_xfer(&epctx->transfers[xferi], report);
+ if (killed) {
+ report = 0; /* Only report once */
+ }
epctx->transfers[xferi].packet.ep = NULL;
xferi = (xferi + 1) % TD_QUEUE;
}
@@ -1381,7 +1391,7 @@ static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid,
return CC_SUCCESS;
}
- xhci_ep_nuke_xfers(xhci, slotid, epid);
+ xhci_ep_nuke_xfers(xhci, slotid, epid, 0);
epctx = slot->eps[epid-1];
@@ -1423,7 +1433,7 @@ static TRBCCode xhci_stop_ep(XHCIState *xhci, unsigned int slotid,
return CC_EP_NOT_ENABLED_ERROR;
}
- if (xhci_ep_nuke_xfers(xhci, slotid, epid) > 0) {
+ if (xhci_ep_nuke_xfers(xhci, slotid, epid, CC_STOPPED) > 0) {
fprintf(stderr, "xhci: FIXME: endpoint stopped w/ xfers running, "
"data might be lost\n");
}
@@ -1468,7 +1478,7 @@ static TRBCCode xhci_reset_ep(XHCIState *xhci, unsigned int slotid,
return CC_CONTEXT_STATE_ERROR;
}
- if (xhci_ep_nuke_xfers(xhci, slotid, epid) > 0) {
+ if (xhci_ep_nuke_xfers(xhci, slotid, epid, 0) > 0) {
fprintf(stderr, "xhci: FIXME: endpoint reset w/ xfers running, "
"data might be lost\n");
}
@@ -2461,7 +2471,7 @@ static void xhci_detach_slot(XHCIState *xhci, USBPort *uport)
for (ep = 0; ep < 31; ep++) {
if (xhci->slots[slot].eps[ep]) {
- xhci_ep_nuke_xfers(xhci, slot+1, ep+1);
+ xhci_ep_nuke_xfers(xhci, slot + 1, ep + 1, 0);
}
}
xhci->slots[slot].uport = NULL;
@@ -3276,7 +3286,7 @@ static void xhci_complete(USBPort *port, USBPacket *packet)
XHCITransfer *xfer = container_of(packet, XHCITransfer, packet);
if (packet->status == USB_RET_REMOVE_FROM_QUEUE) {
- xhci_ep_nuke_one_xfer(xfer);
+ xhci_ep_nuke_one_xfer(xfer, 0);
return;
}
xhci_complete_packet(xfer);