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Annotation of XNU/pexpert/i386/pe_interrupt.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: #include <mach/i386/thread_status.h>
        !            23: #include <pexpert/protos.h>
        !            24: #include <pexpert/pexpert.h>
        !            25: 
        !            26: struct i386_interrupt_handler {
        !            27:        IOInterruptHandler      handler;
        !            28:        void                    *nub;
        !            29:        void                    *target;
        !            30:        void                    *refCon;
        !            31: };
        !            32: 
        !            33: typedef struct i386_interrupt_handler i386_interrupt_handler_t;
        !            34: 
        !            35: i386_interrupt_handler_t       PE_interrupt_handler;
        !            36: 
        !            37: void PE_platform_interrupt_initialize(void)
        !            38: {
        !            39: }
        !            40: 
        !            41: void
        !            42: PE_incoming_interrupt(int interrupt, struct i386_saved_state *ssp)
        !            43: {
        !            44:        boolean_t               save_int;
        !            45: 
        !            46:        i386_interrupt_handler_t        *vector;
        !            47: 
        !            48:        vector = &PE_interrupt_handler;
        !            49: 
        !            50:        save_int  = ml_set_interrupts_enabled(FALSE);
        !            51:        vector->handler(vector->target, vector->refCon, vector->nub, interrupt);
        !            52:        ml_set_interrupts_enabled(save_int);
        !            53: }
        !            54: 
        !            55: void PE_install_interrupt_handler(void *nub, int source,
        !            56:                                  void *target,
        !            57:                                  IOInterruptHandler handler,
        !            58:                                  void *refCon)
        !            59: {
        !            60:        i386_interrupt_handler_t        *vector;
        !            61: 
        !            62:        vector = &PE_interrupt_handler;
        !            63: 
        !            64:        /*vector->source = source; IGNORED */
        !            65:        vector->handler = handler;
        !            66:        vector->nub = nub;
        !            67:        vector->target = target;
        !            68:        vector->refCon = refCon;
        !            69: }

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