xnu-2782.10.72.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 4200dda487c41cd6e42ee2b30ba2cb09b0aae0d2..b935e14c62334b9c86a8b99743eedbd376e68161 100644 (file)
--- a/osfmk/device/device_init.c
+++ b/osfmk/device/device_init.c
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -20,7 +23,7 @@
  * 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@
@@ -58,15 +61,31 @@
  *
  *     Initialize device service as part of kernel task.
  */
+
+#include <mach/mach_types.h>
+#include <mach/port.h>
+
+#include <ipc/ipc_types.h>
 #include <ipc/ipc_port.h>
 #include <ipc/ipc_space.h>
+
+#include <kern/kern_types.h>
+#include <kern/host.h>
+#include <kern/ipc_kobject.h>
+#include <kern/startup.h>
 #include <kern/task.h>
 #include <kern/misc_protos.h>
+
 #include <device/device_types.h>
 #include <device/device_port.h>
 
 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)
 {
@@ -78,6 +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();