From faa02ea1a208dccdc0df2c9ba567c09ca6c2e957 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <eighthave@users.sourceforge.net>
Date: Thu, 30 Nov 2006 05:47:56 +0000
Subject: moved over sources from externals/hcs/hid/HID Utilities Source.  This
 is not just a straight download of the .sit package, it includes some
 necessary updates that were posted to the Apple lists.  See the history in
 externals/hcs/hid/HID Utilities Source for more info.

svn path=/trunk/externals/io/hidio/; revision=6532
---
 HID Utilities Source/ImmrHIDUtilAddOn.c | 95 +++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100755 HID Utilities Source/ImmrHIDUtilAddOn.c

(limited to 'HID Utilities Source/ImmrHIDUtilAddOn.c')

diff --git a/HID Utilities Source/ImmrHIDUtilAddOn.c b/HID Utilities Source/ImmrHIDUtilAddOn.c
new file mode 100755
index 0000000..6d2cbaf
--- /dev/null
+++ b/HID Utilities Source/ImmrHIDUtilAddOn.c	
@@ -0,0 +1,95 @@
+/*
+ *  ImmrHIDUtilAddOn.c
+ *  UseFFAPIFromHIDUtilities
+ *
+ *  Created by rlacroix on Wed Oct 16 2002.
+ *  Copyright (c) 2002 Immersion Corporation. All rights reserved.
+ *
+ */
+
+#include <mach/mach.h>
+#include <mach/mach_error.h>
+
+#include <IOKit/IOKitLib.h>
+#include <IOKit/IOCFPlugIn.h>
+#include <IOKit/hid/IOHIDLib.h>
+#include <IOKit/hid/IOHIDUsageTables.h>
+
+#include "HID_Utilities_External.h"
+#include "ImmrHIDUtilAddOn.h"
+
+//---------------------------------------------------------------------------------
+//
+// AllocateHIDObjectFromRecDevice()
+//
+//	returns:
+//		NULL, or acceptable io_object_t
+//
+//---------------------------------------------------------------------------------
+io_service_t AllocateHIDObjectFromRecDevice( pRecDevice pDevice )
+{
+    CFMutableDictionaryRef	matchingDict;
+    UInt32					locationID = pDevice->locID;
+    CFNumberRef				refUsage = NULL;
+	mach_port_t masterPort = NULL;
+    IOReturn result = kIOReturnSuccess;
+	io_service_t	hidDevice = NULL;
+	
+    do // while( 0 )
+	{
+		result = IOMasterPort (bootstrap_port, &masterPort);
+		if( result != kIOReturnSuccess )
+		{
+			break;
+		}
+		
+		// Set up the matching criteria for the devices we're interested in.
+		// We are interested in instances of class IOHIDDevice.
+		// matchingDict is consumed below (in IOServiceGetMatchingService)
+		// so we have no leak here.
+		//
+		matchingDict = IOServiceMatching(kIOHIDDeviceKey);
+		if (!matchingDict)
+		{
+			break;
+		}
+	
+		// Add a key for locationID to our matching dictionary.  This works for matching to 
+		// IOHIDDevices, so we will only look for a device attached to that particular port
+		// on the machine. 
+		//  
+		refUsage = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &locationID);
+		CFDictionaryAddValue(   matchingDict,
+								CFSTR(kIOHIDLocationIDKey),
+								refUsage);
+		CFRelease(refUsage);
+		
+		// IOServiceGetMatchingService assumes that we already know that there is only one device
+		// that matches.  This way we don't have to do the whole iteration dance to look at each
+		// device that matches.  This is a new API in 10.2
+		//
+		hidDevice = IOServiceGetMatchingService( masterPort, matchingDict);
+	}
+	while( 0 );
+	
+	// Free master port if we created one.
+	//
+	if (masterPort)
+		mach_port_deallocate(mach_task_self(), masterPort);
+   
+   return hidDevice;
+}
+
+//---------------------------------------------------------------------------------
+//
+// FreeHIDObject()
+//
+//---------------------------------------------------------------------------------
+bool FreeHIDObject( io_service_t hidDevice )
+{
+    kern_return_t			kr;
+
+    kr = IOObjectRelease(hidDevice);
+
+	return( kIOReturnSuccess == kr );
+}
\ No newline at end of file
-- 
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