[src/nick-nhusb]: src/sys/dev/usb Perform required DMA operation on bulk tran...

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2501e56851ab
branches:  nick-nhusb
changeset: 334308:2501e56851ab
user:      skrll <skrll%NetBSD.org@localhost>
date:      Sun Nov 08 15:15:50 2015 +0000

description:
Perform required DMA operation on bulk transfers

diffstat:

 sys/dev/usb/uhci.c |  11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diffs (39 lines):

diff -r 05c334a6a141 -r 2501e56851ab sys/dev/usb/uhci.c
--- a/sys/dev/usb/uhci.c        Sun Nov 08 14:59:13 2015 +0000
+++ b/sys/dev/usb/uhci.c        Sun Nov 08 15:15:50 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uhci.c,v 1.264.4.50 2015/11/08 14:56:21 skrll Exp $    */
+/*     $NetBSD: uhci.c,v 1.264.4.51 2015/11/08 15:15:50 skrll Exp $    */
 
 /*
  * Copyright (c) 1998, 2004, 2011, 2012 The NetBSD Foundation, Inc.
@@ -42,7 +42,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.264.4.50 2015/11/08 14:56:21 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uhci.c,v 1.264.4.51 2015/11/08 15:15:50 skrll Exp $");
 
 #include "opt_usb.h"
 
@@ -3122,6 +3122,9 @@
        struct uhci_xfer *ux = UHCI_XFER2UXFER(xfer);
        uhci_softc_t *sc = UHCI_XFER2SC(xfer);
        struct uhci_pipe *upipe = UHCI_PIPE2UPIPE(xfer->ux_pipe);
+       usb_endpoint_descriptor_t *ed = xfer->ux_pipe->up_endpoint->ue_edesc;
+       int endpt = ed->bEndpointAddress;
+       int isread = UE_GET_DIR(endpt) == UE_DIR_IN;
 
        UHCIHIST_FUNC(); UHCIHIST_CALLED();
        DPRINTFN(5, "xfer=%p ux=%p sc=%p upipe=%p", xfer, ux, sc,
@@ -3137,6 +3140,10 @@
        uhci_remove_bulk(sc, upipe->bulk.sqh);
 
        uhci_free_std_chain(sc, ux->ux_stdstart, NULL);
+       if (xfer->ux_length) {
+               usb_syncmem(&xfer->ux_dmabuf, 0, xfer->ux_length,
+                   isread ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
+       }
 
        DPRINTFN(5, "length=%d", xfer->ux_actlen, 0, 0, 0);
 }