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Annotation of kernel/driverkit/KernDevicePrivate.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /*
                     26:  * Copyright (c) 1993, 1994 NeXT Computer, Inc.
                     27:  *
                     28:  * Private declarations for Kernel Device Object.
                     29:  *
                     30:  * HISTORY
                     31:  *
                     32:  * 27 Feb 1994 ? at NeXT
                     33:  *     Major rewrite.
                     34:  * 3 Oct 1993 ? at NeXT
                     35:  *     Created.
                     36:  */
                     37: 
                     38: #ifdef KERNEL_PRIVATE
                     39:  
                     40: #import <mach/mach_types.h>
                     41: #import <ipc/ipc_kmsg.h>
                     42: #import <kern/thread_call_private.h>
                     43:  
                     44: #import <objc/objc.h>
                     45:                                
                     46: @interface KernDevice(Private)
                     47: 
                     48: - (void)_detachInterruptSources;
                     49: 
                     50: @end
                     51: 
                     52: typedef struct KernDeviceInterrupt_ {
                     53:     @defs(KernDeviceInterrupt)
                     54: } KernDeviceInterrupt_;
                     55: 
                     56: /*
                     57:  * Information used to send an ipc
                     58:  * message from interrupt context.
                     59:  * Besides one static reference, we
                     60:  * hold an extra reference to the
                     61:  * interrupt port.  This obviates
                     62:  * the need to aquire a reference
                     63:  * at interrupt time for the in
                     64:  * transit message.
                     65:  */
                     66: 
                     67: typedef struct _KernDeviceInterruptMsg {
                     68:     struct ipc_kmsg            kmsg;
                     69:     ipc_port_t                 iport;
                     70:     id                         lock;
                     71:     struct _thread_call        callout;
                     72:     BOOL                       queued  :1,     /* on message queue */
                     73:                                pending :1,     /* callout pending */
                     74:                                destroy :1,     /* destroy on release */
                     75:                                        :0;
                     76: } KernDeviceInterruptMsg;
                     77: 
                     78: void
                     79: KernDeviceInterruptMsgRelease(
                     80:        void                            *msg
                     81: );
                     82: 
                     83: static
                     84: KernDeviceInterruptMsg *
                     85: _KernDeviceInterruptMsgCreate(
                     86:        ipc_port_t                      interruptPort
                     87: );
                     88: static
                     89: void
                     90: _KernDeviceInterruptMsgDestroy(
                     91:        KernDeviceInterruptMsg          *interruptMsg
                     92: );
                     93: 
                     94: static
                     95: void
                     96: _KernDeviceInterruptCallout(
                     97:        KernDeviceInterruptMsg          *interruptMsg
                     98: );
                     99: 
                    100: #endif

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