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Annotation of XNU/pexpert/ppc/pe_interrupt.c, revision 1.1.1.1

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 <pexpert/pexpert.h>
                     23: #include <pexpert/protos.h>
                     24: #include <pexpert/ppc/powermac.h>
                     25: #include <pexpert/ppc/interrupts.h>
                     26: #include <machine/machine_routines.h>
                     27: #include <kern/debug.h>
                     28: 
                     29: #include <IOKit/IOInterrupts.h>
                     30: 
                     31: void   (*platform_interrupt)(int type, struct ppc_saved_state *ssp,
                     32:                unsigned int dsisr, unsigned int dar, spl_t old_lvl);
                     33: 
                     34: static void *             interrupt_nub;
                     35: static int                interrupt_source;
                     36: static void *             interrupt_target;
                     37: static IOInterruptHandler interrupt_handler;
                     38: static void *             interrupt_refCon;
                     39: 
                     40: 
                     41: static int DEBUGFlag;
                     42: 
                     43: void PE_enter_debugger( char * cause )
                     44: {
                     45:        if( DEBUGFlag & DB_NMI)
                     46:             Debugger(cause);
                     47: }
                     48: 
                     49: void PE_install_interrupt_handler(void *nub, int source,
                     50:                                  void *target,
                     51:                                  IOInterruptHandler handler,
                     52:                                  void *refCon)
                     53: {
                     54:   interrupt_nub     = nub;
                     55:   interrupt_source  = source;
                     56:   interrupt_target  = target;
                     57:   interrupt_handler = handler;
                     58:   interrupt_refCon  = refCon;
                     59: 
                     60:   ml_init_interrupts();
                     61: 
                     62:     if( !PE_parse_boot_arg( "debug", &DEBUGFlag ))
                     63:         DEBUGFlag = 0;
                     64: }
                     65: 
                     66: void PE_incoming_interrupt(int type, struct ppc_saved_state *ssp,
                     67:                           unsigned int dsisr, unsigned int dar)
                     68: {
                     69:   interrupt_handler(interrupt_target, interrupt_refCon,
                     70:                    interrupt_nub, interrupt_source);
                     71: }

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