xnu-2050.7.9.tar.gz

[apple/xnu.git] / osfmk / device / device_init.c

diff --git a/osfmk/device/device_init.c b/osfmk/device/device_init.c
index 55904f4e2bf2697c81306e88d914021b4cf4e894..b935e14c62334b9c86a8b99743eedbd376e68161 100644 (file)
--- a/osfmk/device/device_init.c
+++ b/osfmk/device/device_init.c
@@ -1,23 +1,29 @@
 /*
  * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
@@ -75,6 +81,11 @@
 
 ipc_port_t     master_device_port;
 
+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)
 {
@@ -86,6 +97,16 @@ device_service_create(void)
        kernel_set_special_port(host_priv_self(), HOST_IO_MASTER_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();
        net_io_init();