X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/91447636331957f3d9b5ca5b508f07c526b0074d..eb6b6ca394357805f2bdba989abae309f718b4d8:/osfmk/device/device_init.c

diff --git a/osfmk/device/device_init.c b/osfmk/device/device_init.c
index 55904f4e2..8b1fedd41 100644
--- a/osfmk/device/device_init.c
+++ b/osfmk/device/device_init.c
@@ -1,49 +1,55 @@
 /*
  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
-/* 
+/*
  * Mach Operating System
  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
  * All Rights Reserved.
- * 
+ *
  * Permission to use, copy, modify and distribute this software and its
  * documentation is hereby granted, provided that both the copyright
  * notice and this permission notice appear in all copies of the
  * software, derivative works or modified versions, and any portions
  * thereof, and that both notices appear in supporting documentation.
- * 
+ *
  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
+ *
  * Carnegie Mellon requests users of this software to return to
- * 
+ *
  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  *  School of Computer Science
  *  Carnegie Mellon University
  *  Pittsburgh PA 15213-3890
- * 
+ *
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  */
@@ -51,9 +57,9 @@
  */
 /*
  *	Author: David B. Golub, Carnegie Mellon University
- *	Date: 	8/89
+ *	Date:   8/89
  *
- * 	Initialize device service as part of kernel task.
+ *      Initialize device service as part of kernel task.
  */
 
 #include <mach/mach_types.h>
@@ -73,18 +79,33 @@
 #include <device/device_types.h>
 #include <device/device_port.h>
 
-ipc_port_t	master_device_port;
+ipc_port_t      master_device_port;
+void           *master_device_kobject;
+
+lck_grp_attr_t * dev_lck_grp_attr;
+lck_grp_t * dev_lck_grp;
+lck_attr_t * dev_lck_attr;
+lck_mtx_t iokit_obj_to_port_binding_lock;
 
 void
 device_service_create(void)
 {
-	master_device_port = ipc_port_alloc_kernel();
-	if (master_device_port == IP_NULL)
-	    panic("can't allocate master device port");
+	master_device_port = ipc_kobject_alloc_port(
+		(ipc_kobject_t)&master_device_kobject, IKOT_MASTER_DEVICE,
+		IPC_KOBJECT_ALLOC_NONE);
 
-	ipc_kobject_set(master_device_port, 1, IKOT_MASTER_DEVICE);
 	kernel_set_special_port(host_priv_self(), HOST_IO_MASTER_PORT,
-				ipc_port_make_send(master_device_port));
+	    ipc_port_make_send(master_device_port));
+
+	/* allocate device lock group attribute and group */
+	dev_lck_grp_attr = lck_grp_attr_alloc_init();
+	dev_lck_grp = lck_grp_alloc_init("device", dev_lck_grp_attr);
+
+	/* Allocate device lock attribute */
+	dev_lck_attr = lck_attr_alloc_init();
+
+	/* Initialize the IOKit object to port binding lock */
+	lck_mtx_init(&iokit_obj_to_port_binding_lock, dev_lck_grp, dev_lck_attr);
 
 #if 0
 	ds_init();