Date: Fri, 29 Jan 2010 01:30:13 +0000 (UTC) From: Andrew Thompson <thompsa@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r203140 - head/sys/dev/usb/controller Message-ID: <201001290130.o0T1UDV4011796@svn.freebsd.org>
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Author: thompsa Date: Fri Jan 29 01:30:13 2010 New Revision: 203140 URL: http://svn.freebsd.org/changeset/base/203140 Log: Optimise EHCI ISOC HS done check. Submitted by: Hans Petter Selasky Modified: head/sys/dev/usb/controller/ehci.c Modified: head/sys/dev/usb/controller/ehci.c ============================================================================== --- head/sys/dev/usb/controller/ehci.c Fri Jan 29 01:27:54 2010 (r203139) +++ head/sys/dev/usb/controller/ehci.c Fri Jan 29 01:30:13 2010 (r203140) @@ -1340,25 +1340,22 @@ ehci_check_transfer(struct usb_xfer *xfe } } else if (methods == &ehci_device_isoc_hs_methods) { ehci_itd_t *td; + uint8_t n = (xfer->nframes & 7); /* isochronous high speed transfer */ + /* check last transfer */ td = xfer->td_transfer_last; usb_pc_cpu_invalidate(td->page_cache); - status = - td->itd_status[0] | td->itd_status[1] | - td->itd_status[2] | td->itd_status[3] | - td->itd_status[4] | td->itd_status[5] | - td->itd_status[6] | td->itd_status[7]; + if (n == 0) + status = td->itd_status[7]; + else + status = td->itd_status[n-1]; /* also check first transfer */ td = xfer->td_transfer_first; usb_pc_cpu_invalidate(td->page_cache); - status |= - td->itd_status[0] | td->itd_status[1] | - td->itd_status[2] | td->itd_status[3] | - td->itd_status[4] | td->itd_status[5] | - td->itd_status[6] | td->itd_status[7]; + status |= td->itd_status[0]; /* if no transactions are active we continue */ if (!(status & htohc32(sc, EHCI_ITD_ACTIVE))) {
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