1 files changed, 0 insertions, 338 deletions

diff --git a/qemu/roms/ipxe/src/core/interface.c b/qemu/roms/ipxe/src/core/interface.c
deleted file mode 100644
index ba148c13d..000000000
--- a/qemu/roms/ipxe/src/core/interface.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- * Copyright (C) 2007 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#include <string.h>
-#include <ipxe/interface.h>
-
-/** @file
- *
- * Object interfaces
- *
- */
-
-/*****************************************************************************
- *
- * The null interface
- *
- */
-
-/**
- * Close null interface
- *
- * @v intf		Null interface
- * @v rc		Reason for close
- */
-static void null_intf_close ( struct interface *intf __unused,
-			      int rc __unused ) {
-
-	/* Do nothing.  In particular, do not call intf_restart(),
-	 * since that would result in an infinite loop.
-	 */
-}
-
-/** Null interface operations */
-static struct interface_operation null_intf_op[] = {
-	INTF_OP ( intf_close, struct interface *, null_intf_close ),
-};
-
-/** Null interface descriptor */
-struct interface_descriptor null_intf_desc =
-	INTF_DESC_PURE ( null_intf_op );
-
-/** The null interface */
-struct interface null_intf = INTF_INIT ( null_intf_desc );
-
-/*****************************************************************************
- *
- * Object interface plumbing
- *
- */
-
-/**
- * Plug an object interface into a new destination object interface
- *
- * @v intf		Object interface
- * @v dest		New destination object interface
- *
- * The reference to the existing destination interface is dropped, a
- * reference to the new destination interface is obtained, and the
- * interface is updated to point to the new destination interface.
- *
- * Note that there is no "unplug" call; instead you must plug the
- * interface into a null interface.
- */
-void intf_plug ( struct interface *intf, struct interface *dest ) {
-	DBGC ( INTF_COL ( intf ),
-	       "INTF " INTF_INTF_FMT " replug to " INTF_FMT "\n",
-	       INTF_INTF_DBG ( intf, intf->dest ), INTF_DBG ( dest ) );
-	intf_get ( dest );
-	intf_put ( intf->dest );
-	intf->dest = dest;
-}
-
-/**
- * Plug two object interfaces together
- *
- * @v a			Object interface A
- * @v b			Object interface B
- *
- * Plugs interface A into interface B, and interface B into interface
- * A.  (The basic plug() function is unidirectional; this function is
- * merely a shorthand for two calls to plug(), hence the name.)
- */
-void intf_plug_plug ( struct interface *a, struct interface *b ) {
-	intf_plug ( a, b );
-	intf_plug ( b, a );
-}
-
-/**
- * Unplug an object interface
- *
- * @v intf		Object interface
- */
-void intf_unplug ( struct interface *intf ) {
-	intf_plug ( intf, &null_intf );
-}
-
-/**
- * Ignore all further operations on an object interface
- *
- * @v intf		Object interface
- */
-void intf_nullify ( struct interface *intf ) {
-	intf->desc = &null_intf_desc;
-}
-
-/**
- * Increment reference count on an object interface
- *
- * @v intf		Object interface
- * @ret intf		Object interface
- */
-struct interface * intf_get ( struct interface *intf ) {
-	ref_get ( intf->refcnt );
-	return intf;
-}
-
-/**
- * Decrement reference count on an object interface
- *
- * @v intf		Object interface
- */
-void intf_put ( struct interface *intf ) {
-	ref_put ( intf->refcnt );
-}
-
-/**
- * Get pointer to object containing object interface
- *
- * @v intf		Object interface
- * @ret object		Containing object
- */
-void * intf_object ( struct interface *intf ) {
-	return ( ( ( void * ) intf ) - intf->desc->offset );
-}
-
-/**
- * Get pass-through interface
- *
- * @v intf		Object interface
- * @ret passthru	Pass-through interface, or NULL
- */
-static struct interface * intf_get_passthru ( struct interface *intf ) {
-	struct interface_descriptor *desc = intf->desc;
-
-	if ( desc->passthru_offset ) {
-		return ( ( ( void * ) intf ) + desc->passthru_offset );
-	} else {
-		return NULL;
-	}
-}
-
-/**
- * Get object interface destination and operation method (without pass-through)
- *
- * @v intf		Object interface
- * @v type		Operation type
- * @ret dest		Destination interface
- * @ret func		Implementing method, or NULL
- */
-void * intf_get_dest_op_no_passthru_untyped ( struct interface *intf,
-					      void *type,
-					      struct interface **dest ) {
-	struct interface_descriptor *desc;
-	struct interface_operation *op;
-	unsigned int i;
-
-	*dest = intf_get ( intf->dest );
-	desc = (*dest)->desc;
-	for ( i = desc->num_op, op = desc->op ; i ; i--, op++ ) {
-		if ( op->type == type )
-			return op->func;
-	}
-
-	return NULL;
-}
-
-/**
- * Get object interface destination and operation method
- *
- * @v intf		Object interface
- * @v type		Operation type
- * @ret dest		Destination interface
- * @ret func		Implementing method, or NULL
- */
-void * intf_get_dest_op_untyped ( struct interface *intf, void *type,
-				  struct interface **dest ) {
-	void *func;
-
-	while ( 1 ) {
-
-		/* Search for an implementing method provided by the
-		 * current destination interface.
-		 */
-		func = intf_get_dest_op_no_passthru_untyped( intf, type, dest );
-		if ( func )
-			return func;
-
-		/* Pass through to the underlying interface, if applicable */
-		if ( ! ( intf = intf_get_passthru ( *dest ) ) )
-			return NULL;
-		intf_put ( *dest );
-	}
-}
-
-/*****************************************************************************
- *
- * Generic interface operations
- *
- */
-
-/**
- * Close an object interface
- *
- * @v intf		Object interface
- * @v rc		Reason for close
- *
- * Note that this function merely informs the destination object that
- * the interface is about to be closed; it doesn't actually disconnect
- * the interface.  In most cases, you probably want to use
- * intf_shutdown() or intf_restart() instead.
- */
-void intf_close ( struct interface *intf, int rc ) {
-	struct interface *dest;
-	intf_close_TYPE ( void * ) *op =
-		intf_get_dest_op ( intf, intf_close, &dest );
-	void *object = intf_object ( dest );
-
-	DBGC ( INTF_COL ( intf ), "INTF " INTF_INTF_FMT " close (%s)\n",
-	       INTF_INTF_DBG ( intf, dest ), strerror ( rc ) );
-
-	if ( op ) {
-		op ( object, rc );
-	} else {
-		/* Default is to restart the interface */
-		intf_restart ( dest, rc );
-	}
-
-	intf_put ( dest );
-}
-
-/**
- * Shut down an object interface
- *
- * @v intf		Object interface
- * @v rc		Reason for close
- *
- * Blocks further operations from being received via the interface,
- * executes a close operation on the destination interface, and
- * unplugs the interface.
- */
-void intf_shutdown ( struct interface *intf, int rc ) {
-
-	DBGC ( INTF_COL ( intf ), "INTF " INTF_FMT " shutting down (%s)\n",
-	       INTF_DBG ( intf ), strerror ( rc ) );
-
-	/* Block further operations */
-	intf_nullify ( intf );
-
-	/* Notify destination of close */
-	intf_close ( intf, rc );
-
-	/* Unplug interface */
-	intf_unplug ( intf );
-}
-
-/**
- * Shut down and restart an object interface
- *
- * @v intf		Object interface
- * @v rc		Reason for close
- *
- * Shuts down the interface, then unblocks operations that were
- * blocked during shutdown.
- */
-void intf_restart ( struct interface *intf, int rc ) {
-	struct interface_descriptor *desc = intf->desc;
-
-	/* Shut down the interface */
-	intf_shutdown ( intf, rc );
-
-	DBGC ( INTF_COL ( intf ), "INTF " INTF_FMT " restarting\n",
-	       INTF_DBG ( intf ) );
-
-	/* Restore the interface descriptor.  Must be done after
-	 * shutdown (rather than inhibiting intf_shutdown() from
-	 * nullifying the descriptor) in order to avoid a potential
-	 * infinite loop as the intf_close() operations on each side
-	 * of the link call each other recursively.
-	 */
-	intf->desc = desc;
-}
-
-/**
- * Poke an object interface
- *
- * @v intf		Object interface
- * @v type		Operation type
- *
- * This is a helper function to implement methods which take no
- * parameters and return nothing.
- */
-void intf_poke ( struct interface *intf,
-		 void ( type ) ( struct interface *intf ) ) {
-	struct interface *dest;
-	intf_poke_TYPE ( void * ) *op =
-		intf_get_dest_op_untyped ( intf, type, &dest );
-	void *object = intf_object ( dest );
-
-	if ( op ) {
-		op ( object );
-	} else {
-		/* Default is to do nothing */
-	}
-
-	intf_put ( dest );
-}