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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/slof/fs/generic-disk.fs
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/slof/fs/generic-disk.fs')
-rw-r--r--qemu/roms/SLOF/slof/fs/generic-disk.fs68
1 files changed, 68 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/fs/generic-disk.fs b/qemu/roms/SLOF/slof/fs/generic-disk.fs
new file mode 100644
index 000000000..0543c890e
--- /dev/null
+++ b/qemu/roms/SLOF/slof/fs/generic-disk.fs
@@ -0,0 +1,68 @@
+\ *****************************************************************************
+\ * Copyright (c) 2004, 2008 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
+\ ****************************************************************************/
+
+
+\ Generic disk support
+
+\ Input:
+\ name of device ( e.g. "disk", "cdrom", ... )
+\ dev#
+
+\ Needs from parent in device tree:
+\ dev-read-blocks ( addr block# #blocks phys.lo ... phys.hi -- #read )
+\ block-size
+\ max-transfer
+
+\ Provides:
+\ open ( -- okay? )
+\ close ( -- )
+\ read ( addr len -- actual )
+\ seek ( pos.lo pos.hi -- status )
+\ read-blocks ( addr block# #blocks -- #read )
+\ Uses:
+\ disk-label package interpose for partition and file systems support
+\ deblocker package for byte read support
+
+( str len phys.lo ... phys.hi -- )
+new-device set-unit ( str len )
+ 2dup device-name
+ s" 0 pci-alias-" 2swap $cat evaluate
+ s" block" device-type
+
+\ Requiered interface for deblocker
+
+ s" block-size" $call-parent CONSTANT block-size
+ s" max-transfer" $call-parent CONSTANT max-transfer
+
+: read-blocks ( addr block# #blocks -- #read )
+ my-unit s" dev-read-blocks" $call-parent
+;
+
+INSTANCE VARIABLE deblocker
+
+: open ( -- okay? )
+ 0 0 s" deblocker" $open-package dup deblocker ! dup IF
+ s" disk-label" find-package IF
+ my-args rot interpose
+ THEN
+ THEN 0<> ;
+
+: close ( -- )
+ deblocker @ close-package ;
+
+: seek ( pos.lo pos.hi -- status )
+ s" seek" deblocker @ $call-method ;
+
+: read ( addr len -- actual )
+ s" read" deblocker @ $call-method ;
+
+finish-device