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Print the TPPoll register when the Tx DMA engine doesn't shut down

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in the time we allow.
This commit is contained in:
dyoung 2008-03-12 15:47:49 +00:00
parent 21497ab14b
commit 677859c28a
1 changed files with 7 additions and 4 deletions
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11
sys/dev/ic/rtw.c
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@ -1,4 +1,4 @@
/* $NetBSD: rtw.c,v 1.99 2008/03/03 12:30:57 tsutsui Exp $ */ /* $NetBSD: rtw.c,v 1.100 2008/03/12 15:47:49 dyoung Exp $ */
/*- /*-
* Copyright (c) 2004, 2005, 2006, 2007 David Young. All rights * Copyright (c) 2004, 2005, 2006, 2007 David Young. All rights
* reserved. * reserved.
@ -35,7 +35,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rtw.c,v 1.99 2008/03/03 12:30:57 tsutsui Exp $"); __KERNEL_RCSID(0, "$NetBSD: rtw.c,v 1.100 2008/03/12 15:47:49 dyoung Exp $");
#include "bpfilter.h" #include "bpfilter.h"
@ -3437,6 +3437,7 @@ static void
rtw_idle(struct rtw_regs *regs) rtw_idle(struct rtw_regs *regs)
{ {
int active; int active;
uint8_t tppoll;
/* request stop DMA; wait for packets to stop transmitting. */ /* request stop DMA; wait for packets to stop transmitting. */
@ -3444,9 +3445,11 @@ rtw_idle(struct rtw_regs *regs)
RTW_WBR(regs, RTW_TPPOLL, RTW_TPPOLL); RTW_WBR(regs, RTW_TPPOLL, RTW_TPPOLL);
for (active = 0; active < 300 && for (active = 0; active < 300 &&
(RTW_READ8(regs, RTW_TPPOLL) & RTW_TPPOLL_ACTIVE) != 0; active++) (tppoll = RTW_READ8(regs, RTW_TPPOLL) & RTW_TPPOLL_ACTIVE) != 0;
active++)
DELAY(10); DELAY(10);
printf("%s: transmit DMA idle in %dus\n", __func__, active * 10); printf("%s: transmit DMA idle in %dus, tppoll %02" PRIx8 "\n", __func__,
active * 10, tppoll);
} }
static void static void