/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
cc test2.c -o pm_callback -Wall -Wno-four-char-constants -framework IOKit -framework CoreFoundation
*/

#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>

#include <mach/mach_port.h>
#include <mach/mach_interface.h>
#include <mach/mach_init.h>

#include <IOKit/pwr_mgt/IOPMLib.h>
#include <IOKit/IOMessage.h>

#include "config.h"
#include "wintypes.h"
#include "pcsclite.h"
#include "debuglog.h"
#include "readerfactory.h"
#include "thread_generic.h"
#include "hotplug.h"


static io_connect_t		root_port;
static IONotificationPortRef	notify;
static io_object_t 		anIterator;

PCSCLITE_THREAD_T       pmgmtThread;
extern PCSCLITE_MUTEX   usbNotifierMutex;

void PMPowerRegistrationThread();


void PMPowerEventCallback(void * x,io_service_t y,natural_t messageType,void * messageArgument)
{

    switch ( messageType ) {
    case kIOMessageCanSystemSleep:
          IOAllowPowerChange(root_port,(long)messageArgument);
          break;
    case kIOMessageSystemWillSleep:
          DebugLogA("PMPowerEventCallback: system going into sleep");
          SYS_MutexLock(&usbNotifierMutex);
          RFSuspendAllReaders();
          IOAllowPowerChange(root_port,(long)messageArgument);
          DebugLogA("PMPowerEventCallback: system allowed to sleep");
          break;
    case kIOMessageSystemHasPoweredOn: 
        DebugLogA("PMPowerEventCallback: system coming out of sleep");
        HPSearchHotPluggables();       
        RFAwakeAllReaders();
        SYS_MutexUnLock(&usbNotifierMutex);
        break;
    }
    
}

void PMPowerRegistrationThread() {

    root_port = IORegisterForSystemPower (0,&notify,PMPowerEventCallback,&anIterator);
  
    if ( root_port == NULL ) {
            printf("IORegisterForSystemPower failed\n");
            return;
    }
    
    CFRunLoopAddSource(CFRunLoopGetCurrent(),
                        IONotificationPortGetRunLoopSource(notify),
                        kCFRunLoopDefaultMode);
                
    CFRunLoopRun();
}

ULONG PMRegisterForPowerEvents() {

  LONG rv; 
    
  rv = SYS_ThreadCreate(&pmgmtThread, NULL,
                        (LPVOID) PMPowerRegistrationThread, NULL);
  return 0;
}