xref: /xnu-8796.101.5/osfmk/device/device_init.c (revision aca3beaa3dfbd42498b42c5e5ce20a938e6554e5)

/*
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 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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 * 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.
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 * The Original Code and all software distributed under the License are
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/*
 * @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  [email protected]
 *  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.
 */
/*
 */
/*
 *	Author: David B. Golub, Carnegie Mellon University
 *	Date:   8/89
 *
 *      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>

static SECURITY_READ_ONLY_LATE(void *) main_device_kobject;
SECURITY_READ_ONLY_LATE(ipc_port_t) main_device_port;

IPC_KOBJECT_DEFINE(IKOT_MAIN_DEVICE,
    .iko_op_stable    = true,
    .iko_op_permanent = true);

void
device_service_create(void)
{
	main_device_port = ipc_kobject_alloc_port(
		(ipc_kobject_t)&main_device_kobject, IKOT_MAIN_DEVICE,
		IPC_KOBJECT_ALLOC_NONE);

	kernel_set_special_port(host_priv_self(), HOST_IO_MAIN_PORT,
	    ipc_kobject_make_send(main_device_port, &main_device_kobject,
	    IKOT_MAIN_DEVICE));
}