lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] UHCI: remove ISO TDs as they are used

Browse Source 
This patch (as690) does the same thing for ISO TDs as as680 did for
non-ISO TDs: free them as they are used rather than all at once when an
URB is complete.  At the same time it fixes a minor buglet (I'm not
aware of it ever affecting anyone): An ISO TD should be retired when its
frame is over, regardless of whether or not the hardware has marked it
inactive.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern
2006-05-19 16:52:35 -04:00
committed by Greg Kroah-Hartman
parent caf3827a65
commit c8155cc5d8
3 changed files with 92 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/usb/host/uhci-debug.c
View File

@@ -127,7 +127,8 @@ static int uhci_show_urbp(struct urb_priv *urbp, char *buf, int len, int space)
i = nactive = ninactive = 0;
list_for_each_entry(td, &urbp->td_list, list) {
if (++i <= 10 || debug > 2) {
if (urbp->qh->type != USB_ENDPOINT_XFER_ISOC &&
(++i <= 10 || debug > 2)) {
out += sprintf(out, "%*s%d: ", space + 2, "", i);
out += uhci_show_td(td, out, len - (out - buf), 0);
} else {
@@ -168,8 +169,9 @@ static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space)
space, "", qh, qtype,
le32_to_cpu(qh->link), le32_to_cpu(element));
if (qh->type == USB_ENDPOINT_XFER_ISOC)
out += sprintf(out, "%*s period %d\n",
space, "", qh->period);
out += sprintf(out, "%*s period %d frame %x desc [%p]\n",
space, "", qh->period, qh->iso_frame,
qh->iso_packet_desc);
if (element & UHCI_PTR_QH)
out += sprintf(out, "%*s Element points to QH (bug?)\n", space, "");
@@ -331,8 +333,10 @@ static int uhci_show_status(struct uhci_hcd *uhci, char *buf, int len)
out += sprintf(out, " sof = %02x\n", sof);
out += uhci_show_sc(1, portsc1, out, len - (out - buf));
out += uhci_show_sc(2, portsc2, out, len - (out - buf));
out += sprintf(out, "Most recent frame: %x\n",
uhci->frame_number);
out += sprintf(out, "Most recent frame: %x (%d) "
"Last ISO frame: %x (%d)\n",
uhci->frame_number, uhci->frame_number & 1023,
uhci->last_iso_frame, uhci->last_iso_frame & 1023);
return out - buf;
}