From dc2c037fd23ea3dcf2e13afda22c1c64ab56f96b Mon Sep 17 00:00:00 2001 From: Hikaru Nishida Date: Sat, 20 Jul 2019 15:04:27 +0900 Subject: xhci: Add No Op Command This commit adds No Op Command (23) to xHC for verifying the operation of the Command Ring mechanisms. No Op Command is defined in XHCI spec (4.6.2) and just reports Command Completion Event with Completion Code == Success. Before this commit, No Op Command is not implemented so xHC reports Command Completion Event with Completion Code == TRB Error. This commit fixes this behaviour to report Completion Code correctly. Signed-off-by: Hikaru Nishida Message-id: 20190720060427.50457-1-hikarupsp@gmail.com Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-xhci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index f698224c8a..f578264948 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -2543,6 +2543,9 @@ static void xhci_process_commands(XHCIState *xhci) case CR_GET_PORT_BANDWIDTH: event.ccode = xhci_get_port_bandwidth(xhci, trb.parameter); break; + case CR_NOOP: + event.ccode = CC_SUCCESS; + break; case CR_VENDOR_NEC_FIRMWARE_REVISION: if (xhci->nec_quirks) { event.type = 48; /* NEC reply */ -- cgit v1.2.3