95 lines
2 KiB
Forth
95 lines
2 KiB
Forth
\ *****************************************************************************
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\ * Copyright (c) 2011 IBM Corporation
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\ * All rights reserved.
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\ * This program and the accompanying materials
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\ * are made available under the terms of the BSD License
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\ * which accompanies this distribution, and is available at
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\ * http://www.opensource.org/licenses/bsd-license.php
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\ *
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\ * Contributors:
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\ * IBM Corporation - initial implementation
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\ ****************************************************************************/
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." Populating " pwd cr
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s" network" device-type
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0 VALUE virtfs-rx-buffer
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0 VALUE virtfs-tx-buffer
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FALSE VALUE initialized?
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2000 CONSTANT VIRTFS-BUF-SIZE \ 8k
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virtio-setup-vd VALUE virtiodev
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\
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\ Support methods.
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: shutdown ( -- )
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initialized? 0= IF EXIT THEN
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virtiodev virtio-fs-shutdown
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virtfs-rx-buffer VIRTFS-BUF-SIZE free-mem
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virtfs-tx-buffer VIRTFS-BUF-SIZE free-mem
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FALSE to initialized?
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;
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: init ( -- success )
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VIRTFS-BUF-SIZE alloc-mem to virtfs-rx-buffer
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VIRTFS-BUF-SIZE alloc-mem to virtfs-tx-buffer
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virtiodev ( dev )
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virtfs-tx-buffer ( dev tx )
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virtfs-rx-buffer ( reg tx rx )
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VIRTFS-BUF-SIZE ( reg tx rx size )
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virtio-fs-init ( success )
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dup IF
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TRUE to initialized?
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['] shutdown add-quiesce-xt
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THEN
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;
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\
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\ Standard network interface.
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: open ( -- okay? )
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open 0= IF false EXIT THEN
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initialized? 0= IF
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init 0= IF false EXIT THEN
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THEN
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true
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;
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: load ( addr -- len )
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virtiodev swap ( dev addr )
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my-args ( dev addr str strlen )
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1 + \ hack to make the following allocate 1 more byte
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\-to-/ \ convert path elements
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1 - 2dup + 0 swap c! drop
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virtio-fs-load ( length )
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;
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: close ( -- )
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initialized? IF
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shutdown
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THEN
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close
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;
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: ping ( -- )
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cr s" ping not supported for this device" type cr cr
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;
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: (set-alias)
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" virtfs" find-alias 0= IF
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" virtfs" get-node node>path set-alias
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ELSE
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drop
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THEN
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;
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\
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\ Init the module.
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(set-alias)
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