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Preserve some bits in the overlay qTD.

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This commit is contained in:
augustss 2004-10-25 10:29:49 +00:00
parent 4037d03620
commit e2916e01dd
1 changed files with 9 additions and 4 deletions
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13
sys/dev/usb/ehci.c
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@ -1,4 +1,4 @@
/* $NetBSD: ehci.c,v 1.86 2004/10/24 22:13:52 augustss Exp $ */
/* $NetBSD: ehci.c,v 1.87 2004/10/25 10:29:49 augustss Exp $ */
/*
* Copyright (c) 2004 The NetBSD Foundation, Inc.
@ -65,7 +65,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ehci.c,v 1.86 2004/10/24 22:13:52 augustss Exp $");
__KERNEL_RCSID(0, "$NetBSD: ehci.c,v 1.87 2004/10/25 10:29:49 augustss Exp $");
#include "ohci.h"
#include "uhci.h"
@ -1471,7 +1471,12 @@ void
ehci_set_qh_qtd(ehci_soft_qh_t *sqh, ehci_soft_qtd_t *sqtd)
{
int i;
u_int32_t status;
/* Save toggle bit and ping status. */
status = sqh->qh.qh_qtd.qtd_status &
htole32(EHCI_QTD_TOGGLE_MASK |
EHCI_QTD_SET_STATUS(EHCI_QTD_PINGSTATE));
/* Set HALTED to make hw leave it alone. */
sqh->qh.qh_qtd.qtd_status =
htole32(EHCI_QTD_SET_STATUS(EHCI_QTD_HALTED));
@ -1481,8 +1486,8 @@ ehci_set_qh_qtd(ehci_soft_qh_t *sqh, ehci_soft_qtd_t *sqtd)
for (i = 0; i < EHCI_QTD_NBUFFERS; i++)
sqh->qh.qh_qtd.qtd_buffer[i] = 0;
sqh->sqtd = sqtd;
/* Set !HALTED && !ACTIVE to start execution. */
sqh->qh.qh_qtd.qtd_status = 0;
/* Set !HALTED && !ACTIVE to start execution, preserve some fields */
sqh->qh.qh_qtd.qtd_status = status;
}
/*