Module Name: src
Committed By: gson
Date: Fri Nov 29 14:13:04 UTC 2019
Modified Files:
src/sys/dev/usb: ohci.c
Log Message:
Preserve the toggleCarry bit in the Endpoint Descriptor when handling
a DataUnderrun condition. Fixes PR kern/54070.
To generate a diff of this commit:
cvs rdiff -u -r1.290 -r1.291 src/sys/dev/usb/ohci.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/usb/ohci.c
diff -u src/sys/dev/usb/ohci.c:1.290 src/sys/dev/usb/ohci.c:1.291
--- src/sys/dev/usb/ohci.c:1.290 Sun Aug 11 22:55:03 2019
+++ src/sys/dev/usb/ohci.c Fri Nov 29 14:13:04 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: ohci.c,v 1.290 2019/08/11 22:55:03 mrg Exp $ */
+/* $NetBSD: ohci.c,v 1.291 2019/11/29 14:13:04 gson Exp $ */
/*
* Copyright (c) 1998, 2004, 2005, 2012 The NetBSD Foundation, Inc.
@@ -41,7 +41,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.290 2019/08/11 22:55:03 mrg Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ohci.c,v 1.291 2019/11/29 14:13:04 gson Exp $");
#ifdef _KERNEL_OPT
#include "opt_usb.h"
@@ -1515,8 +1515,9 @@ ohci_softintr(void *v)
ohci_soft_ed_t *sed = opipe->sed;
- /* clear halt and TD chain */
- sed->ed.ed_headp = HTOO32(p->physaddr);
+ /* clear halt and TD chain, preserving toggle carry */
+ sed->ed.ed_headp = HTOO32(p->physaddr |
+ (O32TOH(sed->ed.ed_headp) & OHCI_TOGGLECARRY));
usb_syncmem(&sed->dma,
sed->offs + offsetof(ohci_ed_t, ed_headp),
sizeof(sed->ed.ed_headp),
