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authorAlan Stern <stern@rowland.harvard.edu>2007-12-11 16:05:30 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2008-02-01 14:34:55 -0800
commit07d29b63ef6b39963ab37818653284d861cf55af (patch)
tree10460d9d13ad7284b644181af66ecdbf416cc5ba /drivers/usb/host/ehci-q.c
parent2e2eb83ffd1aeb92bf8793eea892b5bc05a993ea (diff)
downloadlinux-07d29b63ef6b39963ab37818653284d861cf55af.tar.bz2
USB: EHCI: add separate IAA watchdog timer
This patch (as1028) was mostly written by David Brownell; I made only a few changes (extra log info and a small bug fix -- which might account for why David's version had to be reverted). It adds a new watchdog timer to the ehci-hcd driver to be used exclusively for detecting lost or missing IAA notifications. Previously a shared timer had been used, which may have led to some problems as reported by Christian Hoffmann. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ehci-q.c')
-rw-r--r--drivers/usb/host/ehci-q.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index b10f39c047e9..853e5e6396a5 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -973,7 +973,7 @@ static void end_unlink_async (struct ehci_hcd *ehci)
struct ehci_qh *qh = ehci->reclaim;
struct ehci_qh *next;
- timer_action_done (ehci, TIMER_IAA_WATCHDOG);
+ iaa_watchdog_done(ehci);
// qh->hw_next = cpu_to_hc32(qh->qh_dma);
qh->qh_state = QH_STATE_IDLE;
@@ -983,7 +983,6 @@ static void end_unlink_async (struct ehci_hcd *ehci)
/* other unlink(s) may be pending (in QH_STATE_UNLINK_WAIT) */
next = qh->reclaim;
ehci->reclaim = next;
- ehci->reclaim_ready = 0;
qh->reclaim = NULL;
qh_completions (ehci, qh);
@@ -1059,11 +1058,10 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
return;
}
- ehci->reclaim_ready = 0;
cmd |= CMD_IAAD;
ehci_writel(ehci, cmd, &ehci->regs->command);
(void)ehci_readl(ehci, &ehci->regs->command);
- timer_action (ehci, TIMER_IAA_WATCHDOG);
+ iaa_watchdog_start(ehci);
}
/*-------------------------------------------------------------------------*/