imported slof-JX-1.4.0-0 releaseslof-JX-1.4.0-0

1 files changed, 48 insertions, 0 deletions

diff --git a/slof/fs/quiesce.fs b/slof/fs/quiesce.fs
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+\ *****************************************************************************
+\ * Copyright (c) 2004, 2007 IBM Corporation
+\ * All rights reserved.
+\ * This program and the accompanying materials
+\ * are made available under the terms of the BSD License
+\ * which accompanies this distribution, and is available at
+\ * http://www.opensource.org/licenses/bsd-license.php
+\ *
+\ * Contributors:
+\ *     IBM Corporation - initial implementation
+\ ****************************************************************************/
+
+
+10 CONSTANT quiesce-xt#
+
+\ The array with the quiesce execution tokens:
+CREATE quiesce-xts quiesce-xt# cells allot
+quiesce-xts quiesce-xt# cells erase
+
+
+\ Add a token to the quiesce execution token array:
+: add-quiesce-xt  ( xt -- )
+   quiesce-xt# 0 DO
+      quiesce-xts I cells +    ( xt arrayptr )
+      dup @ 0= IF              ( xt arrayptr ) 
+         ! UNLOOP EXIT
+      ELSE
+         drop                  ( xt )
+      THEN
+   LOOP
+   ." Warning: quiesce xt list is full." cr
+;
+
+
+\ The quiesce call asserts that the firmware and all hardware
+\ is in a sane state (e.g. assert that no background DMA is
+\ running anymore)
+: quiesce  ( -- )
+   quiesce-xt# 0 DO
+      quiesce-xts I cells +    ( arrayptr )
+      @ dup IF                 ( xt )
+         EXECUTE
+      ELSE
+         drop UNLOOP EXIT
+      THEN
+   LOOP
+;
+