ieee1394: remove old isochronous ABI

Based on patch "the scheduled removal of RAW1394_REQ_ISO_{SEND,LISTEN}"
from Adrian Bunk, November 20 2006.

This patch also removes the underlying facilities in ohci1394 and
disables them in pcilynx.  That is, hpsb_host_driver.devctl() and
hpsb_host_driver.transmit_packet() are no longer used for iso reception
and transmission.

Since video1394 and dv1394 only work with ohci1394 and raw1394's rawiso
interface has never been implemented in pcilynx, pcilynx is now no
longer useful for isochronous applications.

raw1394 will still handle the request types but will complete the
requests with errors that indicate API version conflicts.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 16 insertions, 0 deletions

diff --git a/Documentation/ABI/removed/raw1394_legacy_isochronous b/Documentation/ABI/removed/raw1394_legacy_isochronous
new file mode 100644
index 00000000000..1b629622d88
--- /dev/null
+++ b/Documentation/ABI/removed/raw1394_legacy_isochronous
@@ -0,0 +1,16 @@
+What:           legacy isochronous ABI of raw1394 (1st generation iso ABI)
+Date:           June 2007 (scheduled), removed in kernel v2.6.23
+Contact:        linux1394-devel@lists.sourceforge.net
+Description:
+        The two request types RAW1394_REQ_ISO_SEND, RAW1394_REQ_ISO_LISTEN have
+        been deprecated for quite some time.  They are very inefficient as they
+        come with high interrupt load and several layers of callbacks for each
+        packet.  Because of these deficiencies, the video1394 and dv1394 drivers
+        and the 3rd-generation isochronous ABI in raw1394 (rawiso) were created.
+
+Users:
+        libraw1394 users via the long deprecated API raw1394_iso_write,
+        raw1394_start_iso_write, raw1394_start_iso_rcv, raw1394_stop_iso_rcv
+
+        libdc1394, which optionally uses these old libraw1394 calls
+        alternatively to the more efficient video1394 ABI