1/* 2 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * Copyright (c) 1998-2003 Apple Computer, Inc. All rights reserved. 30 * 31 * DRI: Josh de Cesare 32 * 33 */ 34 35#include <IOKit/IOTypes.h> 36#include <IOKit/IOLib.h> 37#include <IOKit/pwr_mgt/RootDomain.h> 38 39#include "AppleARMNMI.h" 40 41extern "C" { 42#include <pexpert/pexpert.h> 43} bool RootRegistered(OSObject * us, void *, IOService * yourDevice); 44 45/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 46 47#define super IOService 48 49OSDefineMetaClassAndStructors(AppleARMNMI, IOService); 50OSMetaClassDefineReservedUnused(AppleARMNMI, 0); 51OSMetaClassDefineReservedUnused(AppleARMNMI, 1); 52OSMetaClassDefineReservedUnused(AppleARMNMI, 2); 53OSMetaClassDefineReservedUnused(AppleARMNMI, 3); 54 55/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 56 57bool AppleARMNMI::start(IOService * provider) 58{ 59 if (!super::start(provider)) 60 return false; 61 62 enable_debugger = FALSE; 63 mask_NMI = FALSE; 64 65 if (provider->getProperty("enable_debugger")) 66 enable_debugger = TRUE; // Flag to automatically jump to debugger at NMI press 67 68 if (provider->getProperty("mask_NMI")) 69 mask_NMI = TRUE; // Flag to mask/unmask NMI @ sleep/wake 70 71 // Register the interrupt. 72 IOInterruptAction handler = OSMemberFunctionCast(IOInterruptAction, 73 this, &AppleARMNMI::handleInterrupt); 74 provider->registerInterrupt(0, this, handler, 0); 75 provider->enableInterrupt(0); 76 77 return true; 78} 79 80IOReturn AppleARMNMI::initNMI(IOInterruptController * parentController, OSData * parentSource) 81{ 82 return kIOReturnSuccess; 83} 84 85IOReturn AppleARMNMI::handleInterrupt(void * /*refCon */ , IOService * /*nub */ , int /*source */ ) 86{ 87 if (enable_debugger == TRUE) 88 Debugger("NMI"); // This is a direct call to the Debugger 89 else 90 PE_enter_debugger("NMI"); // This is a indirect call the Debugger that is dependent on the debug flag 91 92 return kIOReturnSuccess; 93} 94