historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/roms/openbios/forth/device/structures.fs

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2024-01-16 11:20:27 -06:00
\ tag: device interface structures
\
\ this code implements data structures used by the
\ IEEE 1275-1994 Open Firmware Device Interface.
\
\ Copyright (C) 2003 Stefan Reinauer
\
\ See the file "COPYING" for further information about
\ the copyright and warranty status of this work.
\
\ this file contains the struct definitions for the following
\ device tree structures:
\ device-node
\ active-package
\ property
\ instance
struct ( instance )
/n field >in.instance-data \ must go first
/n field >in.alloced-size \ alloced size
/n field >in.device-node
/n field >in.my-parent
/n field >in.interposed
4 cells field >in.my-unit
2 cells field >in.arguments
\ instance-data should be null during packet initialization
\ this diverts access to instance variables to the dictionary
constant inst-node.size
struct ( device node )
/n field >dn.isize \ instance size (must go first)
/n field >dn.parent
/n field >dn.child
/n field >dn.peer
/n field >dn.properties
/n field >dn.methods
/n field >dn.priv-methods
/n field >dn.#acells
/n field >dn.probe-addr
inst-node.size field >dn.itemplate
constant dev-node.size
struct ( property )
/n field >prop.next
/n field >prop.name
/n field >prop.addr
/n field >prop.len
constant prop-node.size
struct ( active package )
/n field >ap.device-str
constant active-package.size