According to the XHCI spec (4.10.2) the controller never halts isochronous endpoints. This commit prevent stop of isochronous streaming when sporadic errors status received from backends.
Signed-off-by: Yuri Benditovich <yuri.benditov...@janustech.com> --- hw/usb/hcd-xhci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index 8f1a01a..1a8fd96 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -1571,6 +1571,11 @@ static void xhci_stall_ep(XHCITransfer *xfer) uint32_t err; XHCIStreamContext *sctx; + if (epctx->type == ET_ISO_IN || epctx->type == ET_ISO_OUT) { + /* never halt isoch endpoints, 4.10.2 */ + return; + } + if (epctx->nr_pstreams) { sctx = xhci_find_stream(epctx, xfer->streamid, &err); if (sctx == NULL) { -- 2.9.5