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src/cocoa/HID_Config_Utilities.c Executable file
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// File: HID_Config_Utilities.c
// Abstract: Implementation of the HID configuration utilities
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#define LOG_SCORING 0
#include <stdlib.h> // malloc
#include <time.h> // clock
#include <AssertMacros.h>
#include "HID_Utilities_External.h"
// ---------------------------------
// polls single device's elements for a change greater than kPercentMove. Times out after given time
// returns 1 and pointer to element if found
// returns 0 and NULL for both parameters if not found
unsigned char HIDConfigureSingleDeviceAction(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDElementRef *outIOHIDElementRef, float timeout) {
if ( !inIOHIDDeviceRef ) {
return (0);
}
if ( 0 == HIDHaveDeviceList() ) { // if we do not have a device list
return (0); // return 0
}
Boolean found = FALSE;
// build list of device and elements to save current values
int maxElements = HIDCountDeviceElements(inIOHIDDeviceRef, kHIDElementTypeInput);
int *saveValueArray = (int *) calloc( maxElements, sizeof(int) ); // 2D array to save values
// store initial values on first pass / compare to initial value on subsequent passes
Boolean first = TRUE;
// get all the elements from this device
CFArrayRef elementCFArrayRef = IOHIDDeviceCopyMatchingElements(inIOHIDDeviceRef, NULL, kIOHIDOptionsTypeNone);
// if that worked...
if ( elementCFArrayRef ) {
clock_t start = clock(), end;
// poll all devices and elements
while ( !found ) {
int currElementIndex = 0;
CFIndex idx, cnt = CFArrayGetCount(elementCFArrayRef);
for ( idx = 0; idx < cnt; idx++ ) {
*outIOHIDElementRef = (IOHIDElementRef) CFArrayGetValueAtIndex(elementCFArrayRef, idx);
if ( !*outIOHIDElementRef ) {
continue;
}
// is this an input element?
IOHIDElementType type = IOHIDElementGetType(*outIOHIDElementRef);
switch ( type ) {
// these types are inputs
case kIOHIDElementTypeInput_Misc:
case kIOHIDElementTypeInput_Button:
case kIOHIDElementTypeInput_Axis:
case kIOHIDElementTypeInput_ScanCodes:
default:
{
break;
}
case kIOHIDElementTypeOutput:
case kIOHIDElementTypeFeature:
case kIOHIDElementTypeCollection:
{
*outIOHIDElementRef = NULL; // these types are not ( Skip them )
break;
}
} /* switch */
if ( !*outIOHIDElementRef ) {
continue; // skip this element
}
// get this elements current value
int value = 0; // default value is zero
IOHIDValueRef tIOHIDValueRef;
IOReturn ioReturn = IOHIDDeviceGetValue(inIOHIDDeviceRef, *outIOHIDElementRef, &tIOHIDValueRef);
if ( kIOReturnSuccess == ioReturn ) {
value = IOHIDValueGetScaledValue(tIOHIDValueRef, kIOHIDValueScaleTypePhysical);
}
if ( first ) {
saveValueArray[currElementIndex] = value;
} else {
CFIndex min = IOHIDElementGetLogicalMin(*outIOHIDElementRef);
CFIndex max = IOHIDElementGetLogicalMax(*outIOHIDElementRef);
int initialValue = saveValueArray[currElementIndex];
int delta = (float)(max - min) * kPercentMove * 0.01;
// is the new value within +/- delta of the initial value?
if ( ( (initialValue + delta) < value ) || ( (initialValue - delta) > value ) ) {
found = 1; // ( yes! ) mark as found
break;
}
} // if ( first )
currElementIndex++; // bump element index
} // next idx
first = FALSE; // no longer the first pass
// are we done?
end = clock();
double secs = (double)(end - start) / CLOCKS_PER_SEC;
if ( secs > timeout ) {
break; // ( yes ) timeout
}
} // while ( !found )
CFRelease(elementCFArrayRef);
} // if ( elementCFArrayRef )
// return device and element moved
if ( found ) {
return (1);
} else {
*outIOHIDElementRef = NULL;
return (0);
}
} // HIDConfigureSingleDeviceAction
//*************************************************************************
//
// HIDConfigureAction( outIOHIDDeviceRef, outIOHIDElementRef, inTimeout )
//
// Purpose: polls all devices and elements for a change greater than kPercentMove.
// Times out after given time returns 1 and pointer to device and element
// if found; returns 0 and NULL for both parameters if not found
//
// Inputs: outIOHIDDeviceRef - address where to store the device
// outIOHIDElementRef - address where to store the element
// inTimeout - the timeout
// Returns: Boolean - if successful
// outIOHIDDeviceRef - the device
// outIOHIDElementRef - the element
//
Boolean HIDConfigureAction(IOHIDDeviceRef *outIOHIDDeviceRef, IOHIDElementRef *outIOHIDElementRef, float inTimeout) {
// param error?
if ( !outIOHIDDeviceRef || !outIOHIDElementRef ) {
return (0);
}
if ( !gDeviceCFArrayRef ) { // if we do not have a device list
// and we can't build another list
if ( !HIDBuildDeviceList(0, 0) || !gDeviceCFArrayRef ) {
return (FALSE); // bail
}
}
IOHIDDeviceRef tIOHIDDeviceRef;
IOHIDElementRef tIOHIDElementRef;
// remember when we start; used to calculate timeout
clock_t start = clock(), end;
// determine the maximum number of elements
CFIndex maxElements = 0;
CFIndex devIndex, devCount = CFArrayGetCount(gDeviceCFArrayRef);
for ( devIndex = 0; devIndex < devCount; devIndex++ ) {
tIOHIDDeviceRef = (IOHIDDeviceRef) CFArrayGetValueAtIndex(gDeviceCFArrayRef, devIndex);
if ( !tIOHIDDeviceRef ) {
continue; // skip this one
}
CFIndex count = HIDCountDeviceElements(tIOHIDDeviceRef, kHIDElementTypeInput);
if ( count > maxElements ) {
maxElements = count;
}
}
// allocate an array of int's in which to store devCount * maxElements values
double *saveValueArray = (double *) calloc( devCount * maxElements, sizeof(double) ); // clear 2D array to save values
// on first pass store initial values / compare current values to initial values on subsequent passes
Boolean found = FALSE, first = TRUE;
while ( !found ) {
double maxDeltaPercent = 0; // we want to find the one that moves the most ( percentage wise )
for ( devIndex = 0; devIndex < devCount; devIndex++ ) {
tIOHIDDeviceRef = (IOHIDDeviceRef) CFArrayGetValueAtIndex(gDeviceCFArrayRef, devIndex);
if ( !tIOHIDDeviceRef ) {
continue; // skip this one
}
#ifdef DEBUG
long vendorID = IOHIDDevice_GetVendorID(tIOHIDDeviceRef);
long productID = IOHIDDevice_GetProductID(tIOHIDDeviceRef);
#endif
gElementCFArrayRef = IOHIDDeviceCopyMatchingElements(tIOHIDDeviceRef, NULL, kIOHIDOptionsTypeNone);
if ( gElementCFArrayRef ) {
CFIndex eleIndex, eleCount = CFArrayGetCount(gElementCFArrayRef);
for ( eleIndex = 0; eleIndex < eleCount; eleIndex++ ) {
tIOHIDElementRef = (IOHIDElementRef) CFArrayGetValueAtIndex(gElementCFArrayRef, eleIndex);
if ( !tIOHIDElementRef ) {
continue;
}
IOHIDElementType tIOHIDElementType = IOHIDElementGetType(tIOHIDElementRef);
// only care about inputs (no outputs or features)
if ( tIOHIDElementType <= kIOHIDElementTypeInput_ScanCodes ) {
if ( IOHIDElementIsArray(tIOHIDElementRef) ) {
//printf( "ARRAY!\n" );
continue; // skip array elements
}
uint32_t usagePage = IOHIDElementGetUsagePage(tIOHIDElementRef);
uint32_t usage = IOHIDElementGetUsage(tIOHIDElementRef);
uint32_t reportCount = IOHIDElementGetReportCount(tIOHIDElementRef);
#ifdef DEBUG
if ( first ) {
IOHIDElementCookie cookie = IOHIDElementGetCookie(tIOHIDElementRef);
printf("%s, dev: {ref:%p, ven: 0x%08lX, pro: 0x%08lX}, ele: {ref:%p, cookie: %p, usage:%04lX:%08lX}\n",
__PRETTY_FUNCTION__,
tIOHIDDeviceRef,
vendorID,
productID,
tIOHIDElementRef,
cookie,
(long unsigned int) usagePage,
(long unsigned int) usage);
fflush(stdout);
if ( (0x054C == vendorID) && (0x0268 == productID) && (0x001E == (UInt32) cookie) ) {
//printf( "DING!\n" );
}
}
#endif
#if 1 // work-around for IOHIDValueGetScaledValue crash (when element report count > 1)
if ( reportCount > 1 ) {
//printf( "REPORT!\n" );
continue; // skip reports
}
#endif
// ignore PID elements and arrays
if ( (kHIDPage_PID != usagePage) && (((uint32_t)-1) != usage) ) {
// get this elements current value
double value = 0.0; // default value is zero
IOHIDValueRef tIOHIDValueRef;
IOReturn ioReturn = IOHIDDeviceGetValue(tIOHIDDeviceRef, tIOHIDElementRef, &tIOHIDValueRef);
if ( kIOReturnSuccess == ioReturn ) {
value = IOHIDValueGetScaledValue(tIOHIDValueRef, kIOHIDValueScaleTypePhysical);
}
if ( first ) {
saveValueArray[(devIndex * maxElements) + eleIndex] = value;
} else {
double initialValue = saveValueArray[(devIndex * maxElements) + eleIndex];
CFIndex valueMin = IOHIDElementGetPhysicalMin(tIOHIDElementRef);
CFIndex valueMax = IOHIDElementGetPhysicalMax(tIOHIDElementRef);
double deltaPercent = fabs( (initialValue - value) * 100.0 / (valueMax - valueMin) );
#if 0 // debug code useful to dump out value info for specific (vendorID, productID, usagePage and usage) device
if ( !first ) {
// Device: 0x13b6a0 = { Logitech Inc. - WingMan Force 3D, vendorID: 0x046D, productID: 0xC283,
// usage: 0x0001:0x0004, "Generic Desktop Joystick"
if ( (vendorID == 0x046D) && (productID == 0xC283) ) {
if ( (kHIDPage_GenericDesktop == usagePage) && (kHIDUsage_GD_Rz == usage) ) {
printf("initial: %6.2f, value: %6.2f, diff: %6.2f, delta percent: %6.2f!\n",
initialValue,
value,
fabs(initialValue - value),
deltaPercent);
}
}
}
deltaPercent = 0.0;
#endif
if ( deltaPercent >= kPercentMove ) {
found = TRUE;
if ( deltaPercent > maxDeltaPercent ) {
maxDeltaPercent = deltaPercent;
*outIOHIDDeviceRef = tIOHIDDeviceRef;
*outIOHIDElementRef = tIOHIDElementRef;
}
break;
}
} // if first
} // if usage
} // if type
} // for elements...
CFRelease(gElementCFArrayRef);
gElementCFArrayRef = NULL;
} // if ( gElementCFArrayRef )
if ( found ) {
// HIDDumpElementInfo( tIOHIDElementRef );
break; // DONE!
}
} // for devices
first = FALSE; // no longer the first pass
// are we done?
end = clock();
double secs = (double)(end - start) / CLOCKS_PER_SEC;
if ( secs > inTimeout ) {
break; // ( yes ) timeout
}
} // while ( !found )
// return device and element moved
if ( !found ) {
*outIOHIDDeviceRef = NULL;
*outIOHIDElementRef = NULL;
}
return (found);
} // HIDConfigureAction
//*************************************************************************
//
// HIDSaveElementPref( inKeyCFStringRef, inAppCFStringRef, inIOHIDDeviceRef, inIOHIDElementRef )
//
// Purpose: Save the device & element values into the specified key in the specified applications preferences
//
// Inputs: inKeyCFStringRef - the preference key
// inAppCFStringRef - the application identifier
// inIOHIDDeviceRef - the device
// inIOHIDElementRef - the element
// Returns: Boolean - if successful
//
Boolean HIDSaveElementPref(const CFStringRef inKeyCFStringRef,
CFStringRef inAppCFStringRef,
IOHIDDeviceRef inIOHIDDeviceRef,
IOHIDElementRef inIOHIDElementRef) {
Boolean success = FALSE;
if ( inKeyCFStringRef && inAppCFStringRef && inIOHIDDeviceRef && inIOHIDElementRef ) {
long vendorID = IOHIDDevice_GetVendorID(inIOHIDDeviceRef);
require(vendorID, Oops);
long productID = IOHIDDevice_GetProductID(inIOHIDDeviceRef);
require(productID, Oops);
long locID = IOHIDDevice_GetLocationID(inIOHIDDeviceRef);
require(locID, Oops);
uint32_t usagePage = IOHIDDevice_GetUsagePage(inIOHIDDeviceRef);
uint32_t usage = IOHIDDevice_GetUsage(inIOHIDDeviceRef);
if ( !usagePage || !usage ) {
usagePage = IOHIDDevice_GetPrimaryUsagePage(inIOHIDDeviceRef);
usage = IOHIDDevice_GetPrimaryUsage(inIOHIDDeviceRef);
}
require(usagePage && usage, Oops);
uint32_t usagePageE = IOHIDElementGetUsagePage(inIOHIDElementRef);
uint32_t usageE = IOHIDElementGetUsage(inIOHIDElementRef);
IOHIDElementCookie eleCookie = IOHIDElementGetCookie(inIOHIDElementRef);
CFStringRef prefCFStringRef = CFStringCreateWithFormat(kCFAllocatorDefault, NULL,
CFSTR("d:{v:%ld, p:%ld, l:%ld, p:%ld, u:%ld}, e:{p:%ld, u:%ld, c:%ld}"),
vendorID, productID, locID, usagePage, usage,
usagePageE, usageE, eleCookie);
if ( prefCFStringRef ) {
CFPreferencesSetAppValue(inKeyCFStringRef, prefCFStringRef, inAppCFStringRef);
CFRelease(prefCFStringRef);
success = TRUE;
}
}
Oops: ;
return (success);
} // HIDSaveElementPref
//*************************************************************************
//
// HIDRestoreElementPref( inKeyCFStringRef, inAppCFStringRef, outIOHIDDeviceRef, outIOHIDElementRef )
//
// Purpose: Find the specified preference in the specified application
//
// Inputs: inKeyCFStringRef - the preference key
// inAppCFStringRef - the application identifier
// outIOHIDDeviceRef - address where to restore the device
// outIOHIDElementRef - address where to restore the element
// Returns: Boolean - if successful
// outIOHIDDeviceRef - the device
// outIOHIDElementRef - the element
//
Boolean HIDRestoreElementPref(CFStringRef inKeyCFStringRef,
CFStringRef inAppCFStringRef,
IOHIDDeviceRef * outIOHIDDeviceRef,
IOHIDElementRef *outIOHIDElementRef) {
Boolean found = FALSE;
if ( inKeyCFStringRef && inAppCFStringRef && outIOHIDDeviceRef && outIOHIDElementRef ) {
CFPropertyListRef prefCFPropertyListRef = CFPreferencesCopyAppValue(inKeyCFStringRef, inAppCFStringRef);
if ( prefCFPropertyListRef ) {
if ( CFStringGetTypeID() == CFGetTypeID(prefCFPropertyListRef) ) {
char buffer[256];
if ( CFStringGetCString( (CFStringRef) prefCFPropertyListRef, buffer, sizeof(buffer),
kCFStringEncodingUTF8 ) )
{
HID_info_rec searchHIDInfo;
int count = sscanf(buffer,
"d:{v:%d, p:%d, l:%d, p:%d, u:%d}, e:{p:%d, u:%d, c:%ld}",
&searchHIDInfo.device.vendorID,
&searchHIDInfo.device.productID,
&searchHIDInfo.device.locID,
&searchHIDInfo.device.usagePage,
&searchHIDInfo.device.usage,
&searchHIDInfo.element.usagePage,
&searchHIDInfo.element.usage,
(long *) &searchHIDInfo.element.cookie);
if ( 8 == count ) { // if we found all eight parameters…
// and can find a device & element that matches these…
if ( HIDFindDeviceAndElement(&searchHIDInfo, outIOHIDDeviceRef, outIOHIDElementRef) ) {
found = TRUE;
}
}
}
} else {
// We found the entry with this key but it's the wrong type; delete it.
CFPreferencesSetAppValue(inKeyCFStringRef, NULL, inAppCFStringRef);
(void) CFPreferencesAppSynchronize(inAppCFStringRef);
}
CFRelease(prefCFPropertyListRef);
}
}
return (found);
} // HIDRestoreElementPref
//*************************************************************************
//
// HIDFindDeviceAndElement( inSearchInfo, outFoundDevice, outFoundElement )
//
// Purpose: find the closest matching device and element for this action
//
// Notes: matches device: serial, vendorID, productID, location, inUsagePage, usage
// matches element: cookie, inUsagePage, usage,
//
// Inputs: inSearchInfo - the device & element info we searching for
// outFoundDevice - the address of the best matching device
// outFoundElement - the address of the best matching element
//
// Returns: Boolean - TRUE if we find a match
// outFoundDevice - the best matching device
// outFoundElement - the best matching element
//
Boolean HIDFindDeviceAndElement(const HID_info_rec *inSearchInfo, IOHIDDeviceRef *outFoundDevice, IOHIDElementRef *outFoundElement) {
Boolean result = FALSE;
IOHIDDeviceRef bestIOHIDDeviceRef = NULL;
IOHIDElementRef bestIOHIDElementRef = NULL;
long bestScore = 0;
CFIndex devIndex, devCount = CFArrayGetCount(gDeviceCFArrayRef);
for ( devIndex = 0; devIndex < devCount; devIndex++ ) {
long deviceScore = 1;
IOHIDDeviceRef tIOHIDDeviceRef = (IOHIDDeviceRef) CFArrayGetValueAtIndex(gDeviceCFArrayRef, devIndex);
if ( !tIOHIDDeviceRef ) {
continue;
}
// match vendorID, productID (+10, +8)
if ( inSearchInfo->device.vendorID ) {
long vendorID = IOHIDDevice_GetVendorID(tIOHIDDeviceRef);
if ( vendorID ) {
if ( inSearchInfo->device.vendorID == vendorID ) {
deviceScore += 10;
if ( inSearchInfo->device.productID ) {
long productID = IOHIDDevice_GetProductID(tIOHIDDeviceRef);
if ( productID ) {
if ( inSearchInfo->device.productID == productID ) {
deviceScore += 8;
} // if ( inSearchInfo->device.productID == productID )
} // if ( productID )
} // if ( inSearchInfo->device.productID )
} // if (inSearchInfo->device.vendorID == vendorID)
} // if vendorID
} // if search->device.vendorID
// match usagePage & usage (+9)
if ( inSearchInfo->device.usagePage && inSearchInfo->device.usage ) {
uint32_t usagePage = IOHIDDevice_GetUsagePage(tIOHIDDeviceRef) ;
uint32_t usage = IOHIDDevice_GetUsage(tIOHIDDeviceRef);
if ( !usagePage || !usage ) {
usagePage = IOHIDDevice_GetPrimaryUsagePage(tIOHIDDeviceRef);
usage = IOHIDDevice_GetPrimaryUsage(tIOHIDDeviceRef);
}
if ( usagePage ) {
if ( inSearchInfo->device.usagePage == usagePage ) {
if ( usage ) {
if ( inSearchInfo->device.usage == usage ) {
deviceScore += 9;
} // if ( inSearchInfo->usage == usage )
} // if ( usage )
} // if ( inSearchInfo->usagePage == usagePage )
} // if ( usagePage )
} // if ( inSearchInfo->usagePage && inSearchInfo->usage )
// match location ID (+5)
if ( inSearchInfo->device.locID ) {
long locID = IOHIDDevice_GetLocationID(tIOHIDDeviceRef);
if ( locID ) {
if ( inSearchInfo->device.locID == locID ) {
deviceScore += 5;
}
}
}
// iterate over all elements of this device
gElementCFArrayRef = IOHIDDeviceCopyMatchingElements(tIOHIDDeviceRef, NULL, 0);
if ( gElementCFArrayRef ) {
CFIndex eleIndex, eleCount = CFArrayGetCount(gElementCFArrayRef);
for ( eleIndex = 0; eleIndex < eleCount; eleIndex++ ) {
IOHIDElementRef tIOHIDElementRef = (IOHIDElementRef) CFArrayGetValueAtIndex(gElementCFArrayRef, eleIndex);
if ( !tIOHIDElementRef ) {
continue;
}
long score = deviceScore;
// match usage page, usage & cookie
if ( inSearchInfo->element.usagePage && inSearchInfo->element.usage ) {
uint32_t usagePage = IOHIDElementGetUsagePage(tIOHIDElementRef);
if ( inSearchInfo->element.usagePage == usagePage ) {
uint32_t usage = IOHIDElementGetUsage(tIOHIDElementRef);
if ( inSearchInfo->element.usage == usage ) {
score += 5;
IOHIDElementCookie cookie = IOHIDElementGetCookie(tIOHIDElementRef);
if ( inSearchInfo->element.cookie == cookie ) {
score += 4;
} // cookies match
} else {
score = 0;
} // usages match
} else {
score = 0;
} // usage pages match
} // if ( search usage page & usage )
#if LOG_SCORING
if ( kHIDPage_KeyboardOrKeypad != tElementRef->usagePage ) { // skip keyboards here
printf("%s: ( %ld:%ld )-I-Debug, score: %ld\t",
__PRETTY_FUNCTION__,
inSearchInfo->element.usagePage,
inSearchInfo->element.usage,
score);
HIDPrintElement(tIOHIDElementRef);
}
#endif // LOG_SCORING
if ( score > bestScore ) {
bestIOHIDDeviceRef = tIOHIDDeviceRef;
bestIOHIDElementRef = tIOHIDElementRef;
bestScore = score;
#if LOG_SCORING
printf("%s: ( %ld:%ld )-I-Debug, better score: %ld\t",
__PRETTY_FUNCTION__,
inSearchInfo->element.usagePage,
inSearchInfo->element.usage,
score);
HIDPrintElement(bestIOHIDElementRef);
#endif // LOG_SCORING
}
} // for elements...
CFRelease(gElementCFArrayRef);
gElementCFArrayRef = NULL;
} // if ( gElementCFArrayRef )
} // for ( devIndex = 0; devIndex < devCount; devIndex++ )
if ( bestIOHIDDeviceRef || bestIOHIDElementRef ) {
*outFoundDevice = bestIOHIDDeviceRef;
*outFoundElement = bestIOHIDElementRef;
#if LOG_SCORING
printf("%s: ( %ld:%ld )-I-Debug, best score: %ld\t",
__PRETTY_FUNCTION__,
inSearchInfo->element.usagePage,
inSearchInfo->element.usage,
bestScore);
HIDPrintElement(bestIOHIDElementRef);
#endif // LOG_SCORING
result = TRUE;
}
return (result);
} // HIDFindDeviceAndElement
// ---------------------------------
// takes input records, save required info
// assume file is open and at correct position.
// will always write to file (if file exists) size of HID_info_rec, even if device and or element is bad
void HIDSaveElementConfig(FILE *fileRef, IOHIDDeviceRef inIOHIDDeviceRef, IOHIDElementRef inIOHIDElementRef, int actionCookie) {
// must save:
// actionCookie
// Device: serial,vendorID, productID, location, usagePage, usage
// Element: cookie, usagePage, usage,
HID_info_rec hidInfoRec;
HIDSetElementConfig(&hidInfoRec, inIOHIDDeviceRef, inIOHIDElementRef, actionCookie);
// write to file
if ( fileRef ) {
fwrite( (void *)&hidInfoRec, sizeof(HID_info_rec), 1, fileRef );
}
} // HIDSaveElementConfig
// ---------------------------------
// take file, read one record (assume file position is correct and file is open)
// search for matching device
// return pDevice, pElement and cookie for action
int HIDRestoreElementConfig(FILE *fileRef, IOHIDDeviceRef *outIOHIDDeviceRef, IOHIDElementRef *outIOHIDElementRef) {
// Device: serial,vendorID, productID, location, usagePage, usage
// Element: cookie, usagePage, usage,
HID_info_rec hidInfoRec;
fread( (void *) &hidInfoRec, 1, sizeof(HID_info_rec), fileRef );
return ( HIDGetElementConfig(&hidInfoRec, outIOHIDDeviceRef, outIOHIDElementRef) );
} // HIDRestoreElementConfig
// ---------------------------------
// Set up a config record for saving
// takes an input records, returns record user can save as they want
// Note: the save rec must be pre-allocated by the calling app and will be filled out
void HIDSetElementConfig(HID_info_ptr inHIDInfoPtr,
IOHIDDeviceRef inIOHIDDeviceRef,
IOHIDElementRef inIOHIDElementRef,
int actionCookie) {
// must save:
// actionCookie
// Device: serial,vendorID, productID, location, usagePage, usage
// Element: cookie, usagePage, usage,
inHIDInfoPtr->actionCookie = actionCookie;
// device
// need to add serial number when I have a test case
if ( inIOHIDDeviceRef && inIOHIDElementRef ) {
inHIDInfoPtr->device.vendorID = IOHIDDevice_GetVendorID(inIOHIDDeviceRef);
inHIDInfoPtr->device.productID = IOHIDDevice_GetProductID(inIOHIDDeviceRef);
inHIDInfoPtr->device.locID = IOHIDDevice_GetLocationID(inIOHIDDeviceRef);
inHIDInfoPtr->device.usage = IOHIDDevice_GetUsage(inIOHIDDeviceRef);
inHIDInfoPtr->device.usagePage = IOHIDDevice_GetUsagePage(inIOHIDDeviceRef);
inHIDInfoPtr->element.usagePage = IOHIDElementGetUsagePage(inIOHIDElementRef);
inHIDInfoPtr->element.usage = IOHIDElementGetUsage(inIOHIDElementRef);
inHIDInfoPtr->element.minReport = IOHIDElement_GetCalibrationSaturationMin(inIOHIDElementRef);
inHIDInfoPtr->element.maxReport = IOHIDElement_GetCalibrationSaturationMax(inIOHIDElementRef);
inHIDInfoPtr->element.cookie = IOHIDElementGetCookie(inIOHIDElementRef);
} else {
inHIDInfoPtr->device.vendorID = 0;
inHIDInfoPtr->device.productID = 0;
inHIDInfoPtr->device.locID = 0;
inHIDInfoPtr->device.usage = 0;
inHIDInfoPtr->device.usagePage = 0;
inHIDInfoPtr->element.usagePage = 0;
inHIDInfoPtr->element.usage = 0;
inHIDInfoPtr->element.minReport = 0;
inHIDInfoPtr->element.maxReport = 0;
inHIDInfoPtr->element.cookie = 0;
}
} // HIDSetElementConfig
// ---------------------------------
#if 0 // debug utility function to dump config record
void HIDDumpConfig(HID_info_ptr inHIDInfoPtr) {
printf(
"Config Record for action: %d\n\t vendor: %d product: %d location: %d\n\t usage: %d usagePage: %d\n\t element.usagePage: %d element.usage: %d\n\t minReport: %d maxReport: %d\n\t cookie: %d\n",
inHIDInfoPtr->actionCookie,
inHIDInfoPtr->device.vendorID,
inHIDInfoPtr->device.productID,
inHIDInfoPtr->locID,
inHIDInfoPtr->usage,
inHIDInfoPtr->usagePage,
inHIDInfoPtr->element.usagePage,
inHIDInfoPtr->element.usage,
inHIDInfoPtr->minReport,
inHIDInfoPtr->maxReport,
inHIDInfoPtr->cookie);
} // HIDDumpConfig
#endif // 0
// ---------------------------------
// Get matching element from config record
// takes a pre-allocated and filled out config record
// search for matching device
// return pDevice, pElement and cookie for action
int HIDGetElementConfig(HID_info_ptr inHIDInfoPtr, IOHIDDeviceRef *outIOHIDDeviceRef, IOHIDElementRef *outIOHIDElementRef) {
if ( !inHIDInfoPtr->device.locID && !inHIDInfoPtr->device.vendorID && !inHIDInfoPtr->device.productID && !inHIDInfoPtr->device.usage
&& !inHIDInfoPtr->device.usagePage ) //
{ //
// early out
*outIOHIDDeviceRef = NULL;
*outIOHIDElementRef = NULL;
return (inHIDInfoPtr->actionCookie);
}
IOHIDDeviceRef tIOHIDDeviceRef, foundIOHIDDeviceRef = NULL;
IOHIDElementRef tIOHIDElementRef, foundIOHIDElementRef = NULL;
CFIndex devIdx, devCnt, idx, cnt;
// compare to current device list for matches
// look for device
if ( inHIDInfoPtr->device.locID && inHIDInfoPtr->device.vendorID && inHIDInfoPtr->device.productID ) { // look for specific device
// type plug in to same port
devCnt = CFArrayGetCount(gDeviceCFArrayRef);
for ( devIdx = 0; devIdx < devCnt; devIdx++ ) {
tIOHIDDeviceRef = (IOHIDDeviceRef) CFArrayGetValueAtIndex(gDeviceCFArrayRef, devIdx);
if ( !tIOHIDDeviceRef ) {
continue; // skip this device
}
long locID = IOHIDDevice_GetLocationID(tIOHIDDeviceRef);
long vendorID = IOHIDDevice_GetVendorID(tIOHIDDeviceRef);
long productID = IOHIDDevice_GetProductID(tIOHIDDeviceRef);
if ( (inHIDInfoPtr->device.locID == locID)
&& (inHIDInfoPtr->device.vendorID == vendorID)
&& (inHIDInfoPtr->device.productID == productID) )
{
foundIOHIDDeviceRef = tIOHIDDeviceRef;
}
if ( foundIOHIDDeviceRef ) {
break;
}
} // next devIdx
if ( foundIOHIDDeviceRef ) {
CFArrayRef elementCFArrayRef = IOHIDDeviceCopyMatchingElements(foundIOHIDDeviceRef, NULL, kIOHIDOptionsTypeNone);
if ( elementCFArrayRef ) {
cnt = CFArrayGetCount(elementCFArrayRef);
for ( idx = 0; idx < cnt; idx++ ) {
tIOHIDElementRef = (IOHIDElementRef) CFArrayGetValueAtIndex(elementCFArrayRef, idx);
if ( !tIOHIDElementRef ) {
continue; // skip this element
}
IOHIDElementCookie cookie = IOHIDElementGetCookie(tIOHIDElementRef);
if ( inHIDInfoPtr->element.cookie == cookie ) {
foundIOHIDElementRef = tIOHIDElementRef;
}
if ( foundIOHIDElementRef ) {
break;
}
}
if ( !foundIOHIDElementRef ) {
cnt = CFArrayGetCount(elementCFArrayRef);
for ( idx = 0; idx < cnt; idx++ ) {
tIOHIDElementRef = (IOHIDElementRef) CFArrayGetValueAtIndex(elementCFArrayRef, idx);
if ( !tIOHIDElementRef ) {
continue; // skip this element
}
uint32_t usagePage = IOHIDElementGetUsagePage(tIOHIDElementRef);
uint32_t usage = IOHIDElementGetUsage(tIOHIDElementRef);
if ( (inHIDInfoPtr->element.usage == usage) && (inHIDInfoPtr->element.usagePage == usagePage) ) {
foundIOHIDElementRef = tIOHIDElementRef;
}
if ( foundIOHIDElementRef ) {
break;
}
} // next idx
} // if ( !foundIOHIDElementRef )
if ( foundIOHIDElementRef ) { // if same device
// setup the calibration
IOHIDElement_SetupCalibration(tIOHIDElementRef);
IOHIDElement_SetCalibrationSaturationMin(tIOHIDElementRef, inHIDInfoPtr->element.minReport);
IOHIDElement_SetCalibrationSaturationMax(tIOHIDElementRef, inHIDInfoPtr->element.maxReport);
}
CFRelease(elementCFArrayRef);
} // if ( elementCFArrayRef )
} // if ( foundIOHIDDeviceRef )
// if we have not found a match, look at just vendor and product
if ( (!foundIOHIDDeviceRef) && (inHIDInfoPtr->device.vendorID && inHIDInfoPtr->device.productID) ) {
devCnt = CFArrayGetCount(gDeviceCFArrayRef);
for ( devIdx = 0; devIdx < devCnt; devIdx++ ) {
tIOHIDDeviceRef = (IOHIDDeviceRef) CFArrayGetValueAtIndex(gDeviceCFArrayRef, devIdx);
if ( !tIOHIDDeviceRef ) {
continue; // skip this device
}
long vendorID = IOHIDDevice_GetVendorID(tIOHIDDeviceRef);
long productID = IOHIDDevice_GetProductID(tIOHIDDeviceRef);
if ( (inHIDInfoPtr->device.vendorID == vendorID)
&& (inHIDInfoPtr->device.productID == productID) )
{
foundIOHIDDeviceRef = tIOHIDDeviceRef;
}
if ( foundIOHIDDeviceRef ) {
break;
}
}
// match elements by cookie since same device type
if ( foundIOHIDDeviceRef ) {
CFArrayRef elementCFArrayRef = IOHIDDeviceCopyMatchingElements(foundIOHIDDeviceRef, NULL, kIOHIDOptionsTypeNone);
if ( elementCFArrayRef ) {
cnt = CFArrayGetCount(elementCFArrayRef);
for ( idx = 0; idx < cnt; idx++ ) {
tIOHIDElementRef = (IOHIDElementRef) CFArrayGetValueAtIndex(elementCFArrayRef, idx);
if ( !tIOHIDElementRef ) {
continue; // skip this element
}
IOHIDElementCookie cookie = IOHIDElementGetCookie(tIOHIDElementRef);
if ( inHIDInfoPtr->element.cookie == cookie ) {
foundIOHIDElementRef = tIOHIDElementRef;
}
if ( foundIOHIDElementRef ) {
break;
}
}
// if no cookie match (should NOT occur) match on usage
if ( !foundIOHIDElementRef ) {
cnt = CFArrayGetCount(elementCFArrayRef);
for ( idx = 0; idx < cnt; idx++ ) {
tIOHIDElementRef = (IOHIDElementRef) CFArrayGetValueAtIndex(elementCFArrayRef, idx);
if ( !tIOHIDElementRef ) {
continue; // skip this element
}
uint32_t usagePage = IOHIDElementGetUsagePage(tIOHIDElementRef);
uint32_t usage = IOHIDElementGetUsage(tIOHIDElementRef);
if ( (inHIDInfoPtr->element.usage == usage)
&& (inHIDInfoPtr->element.usagePage == usagePage) )
{
foundIOHIDElementRef = tIOHIDElementRef;
}
if ( foundIOHIDElementRef ) {
break;
}
} // next idx
} // if ( !foundIOHIDElementRef )
if ( foundIOHIDElementRef ) { // if same device
// setup the calibration
IOHIDElement_SetupCalibration(tIOHIDElementRef);
IOHIDElement_SetCalibrationSaturationMin(tIOHIDElementRef, inHIDInfoPtr->element.minReport);
IOHIDElement_SetCalibrationSaturationMax(tIOHIDElementRef, inHIDInfoPtr->element.maxReport);
}
CFRelease(elementCFArrayRef);
} // if ( elementCFArrayRef )
} // if ( foundIOHIDDeviceRef )
} // if ( device not found & vendorID & productID )
} // if ( inHIDInfoPtr->locID && inHIDInfoPtr->device.vendorID && inHIDInfoPtr->device.productID )
// can't find matching device return NULL, do not return first device
if ( (!foundIOHIDDeviceRef) || (!foundIOHIDElementRef) ) {
// no HID device
*outIOHIDDeviceRef = NULL;
*outIOHIDElementRef = NULL;
return (inHIDInfoPtr->actionCookie);
} else {
// HID device
*outIOHIDDeviceRef = foundIOHIDDeviceRef;
*outIOHIDElementRef = foundIOHIDElementRef;
return (inHIDInfoPtr->actionCookie);
}
} // HIDGetElementConfig

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src/cocoa/HID_Error_Handler.c Executable file
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// File: HID_Error_Handler.c
// Abstract: Implementation of the HID utilities error handlers
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#ifdef DEBUG // not used in release
#if !defined (kBuildingLibrary)
#define kVerboseErrors
// system includes ----------------------------------------------------------
#ifdef kVerboseErrors
//#include <Carbon/Carbon.h>
#endif
#endif // not kBuildingLibrary
#endif // DEBUG
#include <stdio.h>
// project includes ---------------------------------------------------------
#include "HID_Utilities_External.h"
// globals (internal/private) -----------------------------------------------
// prototypes (internal/private) --------------------------------------------
// functions (internal/private) ---------------------------------------------
#pragma mark -
// -------------------------------------
// central error reporting
void HIDReportErrorNum(const char *strError, int numError) {
char errMsgCStr[256];
sprintf(errMsgCStr, "%s #%d (0x%x)", strError, numError, numError);
// out as debug string
#ifdef kVerboseErrors
{
fputs(errMsgCStr, stderr);
}
#endif // kVerboseErrors
} // HIDReportErrorNum
// -------------------------------------
void HIDReportError(const char *strError) {
char errMsgCStr[256];
sprintf(errMsgCStr, "%s", strError);
// out as debug string
#ifdef kVerboseErrors
{
fputs(errMsgCStr, stderr);
}
#endif // kVerboseErrors
} // HIDReportError

1203
src/cocoa/HID_Name_Lookup.c Executable file

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354
src/cocoa/HID_Queue_Utilities.c Executable file
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// File: HID_Queue_Utilities.c
// Abstract: HID Queue Utilities.
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#include "HID_Utilities_External.h"
// ==================================
// private functions
// creates a queue for a device, creates and opens device interface if required
static IOReturn HIDCreateQueue(IOHIDDeviceRef inIOHIDDeviceRef) {
IOReturn result = kIOReturnSuccess;
if ( inIOHIDDeviceRef ) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
// do we already have a queue?
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( tIOHIDQueueRef ) { // (yes)
assert( IOHIDQueueGetTypeID() == CFGetTypeID(tIOHIDQueueRef) );
} else {
tIOHIDQueueRef = IOHIDQueueCreate(kCFAllocatorDefault, inIOHIDDeviceRef, kDeviceQueueSize, kIOHIDOptionsTypeNone);
if ( tIOHIDQueueRef ) { // did that work
IOHIDDevice_SetQueue(inIOHIDDeviceRef, tIOHIDQueueRef);
result = kIOReturnSuccess;
} else {
HIDReportErrorNum("Failed to create queue via create", result);
}
}
} else {
HIDReportErrorNum("HID device ref does not exist for queue creation", result);
}
return (result);
} /* HIDCreateQueue */
// ---------------------------------
// returns true if queue is empty false otherwise
// error if no device, empty if no queue
static unsigned char HIDIsDeviceQueueEmpty(IOHIDDeviceRef inIOHIDDeviceRef) {
if ( inIOHIDDeviceRef ) { // need device and queue
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( tIOHIDQueueRef ) {
IOHIDElementRef tIOHIDElementRef = HIDGetFirstDeviceElement(inIOHIDDeviceRef, kHIDElementTypeIO);
while ( tIOHIDElementRef ) {
if ( IOHIDQueueContainsElement(tIOHIDQueueRef, tIOHIDElementRef) ) {
return (false);
}
tIOHIDElementRef = HIDGetNextDeviceElement(tIOHIDElementRef, kHIDElementTypeIO);
}
} else {
HIDReportError("NULL device passed to HIDIsDeviceQueueEmpty.");
}
} else {
HIDReportError("NULL device passed to HIDIsDeviceQueueEmpty.");
}
return (true);
} /* HIDIsDeviceQueueEmpty */
// ---------------------------------
// disposes and releases queue, sets queue to NULL,.
// Note: will have no effect if device or queue do not exist
static IOReturn HIDDisposeReleaseQueue(IOHIDDeviceRef inIOHIDDeviceRef) {
IOReturn result = kIOReturnSuccess;
if ( inIOHIDDeviceRef ) {
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( tIOHIDQueueRef ) {
// stop queue
IOHIDQueueStop(tIOHIDQueueRef);
// release the queue
CFRelease(tIOHIDQueueRef);
}
} else {
HIDReportError("NULL device passed to HIDDisposeReleaseQueue.");
}
return (result);
} /* HIDDisposeReleaseQueue */
// ==================================
// public functions
// ----------------------------------
// queues specific element, performing any device queue set up required
// queue is started and ready to return events on exit from this function
int HIDQueueElement(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDElementRef inIOHIDElementRef) {
IOReturn result = kIOReturnSuccess;
if ( inIOHIDDeviceRef ) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
if ( inIOHIDElementRef ) {
assert( IOHIDElementGetTypeID() == CFGetTypeID(inIOHIDElementRef) );
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( !tIOHIDQueueRef ) { // if no queue create queue
result = HIDCreateQueue(inIOHIDDeviceRef);
if ( kIOReturnSuccess == result ) {
tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
}
}
if ( tIOHIDQueueRef ) {
// stop queue
IOHIDQueueStop(tIOHIDQueueRef);
// queue element
if ( !IOHIDQueueContainsElement(tIOHIDQueueRef, inIOHIDElementRef) ) {
IOHIDQueueAddElement(tIOHIDQueueRef, inIOHIDElementRef);
}
// restart queue
IOHIDQueueStart(tIOHIDQueueRef);
} else {
HIDReportError("No queue for device passed to HIDQueueElement.");
if ( kIOReturnSuccess == result ) {
result = kIOReturnError;
}
}
} else {
HIDReportError("NULL element passed to HIDQueueElement.");
result = kIOReturnBadArgument;
}
} else {
HIDReportError("NULL device passed to HIDQueueElement.");
result = kIOReturnBadArgument;
}
return (result);
} /* HIDQueueElement */
// ---------------------------------
// adds all elements to queue, performing any device queue set up required
// queue is started and ready to return events on exit from this function
int HIDQueueDevice(IOHIDDeviceRef inIOHIDDeviceRef) {
IOReturn result = kIOReturnSuccess;
// error checking
if ( !inIOHIDDeviceRef ) {
HIDReportError("Device does not exist, cannot queue device.");
return (kIOReturnBadArgument);
}
if ( !inIOHIDDeviceRef ) { // must have interface
HIDReportError("Device does not have hid device ref, cannot queue device.");
return (kIOReturnError);
}
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( !tIOHIDQueueRef ) { // if no queue create queue
result = HIDCreateQueue(inIOHIDDeviceRef);
if ( kIOReturnSuccess == result ) {
tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
}
}
if ( (kIOReturnSuccess != result) || (!tIOHIDQueueRef) ) {
HIDReportErrorNum("Could not queue device due to problem creating queue.", result);
if ( kIOReturnSuccess != result ) {
return (result);
} else {
return (kIOReturnError);
}
}
// stop queue
IOHIDQueueStop(tIOHIDQueueRef);
// queue element
IOHIDElementRef tIOHIDElementRef = HIDGetFirstDeviceElement(inIOHIDDeviceRef, kHIDElementTypeIO);
while ( tIOHIDElementRef ) {
if ( !IOHIDQueueContainsElement(tIOHIDQueueRef, tIOHIDElementRef) ) {
IOHIDQueueAddElement(tIOHIDQueueRef, tIOHIDElementRef);
}
tIOHIDElementRef = HIDGetNextDeviceElement(tIOHIDElementRef, kHIDElementTypeIO);
}
// restart queue
IOHIDQueueStart(tIOHIDQueueRef);
return (result);
} /* HIDQueueDevice */
// ---------------------------------
// removes element for queue, if last element in queue will release queue and closes device interface
int HIDDequeueElement(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDElementRef inIOHIDElementRef) {
IOReturn result = kIOReturnSuccess;
if ( inIOHIDDeviceRef ) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
if ( inIOHIDElementRef ) {
assert( IOHIDElementGetTypeID() == CFGetTypeID(inIOHIDElementRef) );
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( tIOHIDQueueRef ) {
// stop queue
IOHIDQueueStop(tIOHIDQueueRef);
// de-queue element
if ( IOHIDQueueContainsElement(tIOHIDQueueRef, inIOHIDElementRef) ) {
IOHIDQueueRemoveElement(tIOHIDQueueRef, inIOHIDElementRef);
}
// release device queue and close interface if queue empty
if ( HIDIsDeviceQueueEmpty(inIOHIDDeviceRef) ) {
result = HIDDisposeReleaseQueue(inIOHIDDeviceRef);
if ( kIOReturnSuccess != result ) {
HIDReportErrorNum("Failed to dispose and release queue.", result);
}
} else { // not empty so restart queue
IOHIDQueueStart(tIOHIDQueueRef);
}
} else {
HIDReportError("No queue for device passed to HIDDequeueElement.");
if ( kIOReturnSuccess == result ) {
result = kIOReturnError;
}
}
} else {
HIDReportError("NULL element passed to HIDDequeueElement.");
result = kIOReturnBadArgument;
}
} else {
HIDReportError("NULL device passed to HIDDequeueElement.");
result = kIOReturnBadArgument;
}
return (result);
} /* HIDDequeueElement */
// ---------------------------------
// completely removes all elements from queue and releases queue and closes device interface
// does not release device interfaces, application must call ReleaseHIDDeviceList on exit
int HIDDequeueDevice(IOHIDDeviceRef inIOHIDDeviceRef) {
IOReturn result = kIOReturnSuccess;
// error checking
if ( !inIOHIDDeviceRef ) {
HIDReportError("Device does not exist, cannot queue device.");
return (kIOReturnBadArgument);
}
if ( !inIOHIDDeviceRef ) { // must have interface
HIDReportError("Device does not have hid device ref, cannot queue device.");
return (kIOReturnError);
}
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( tIOHIDQueueRef ) {
// iterate through elements and if queued, remove
IOHIDElementRef tIOHIDElementRef = HIDGetFirstDeviceElement(inIOHIDDeviceRef, kHIDElementTypeIO);
while ( tIOHIDElementRef ) {
// de-queue element
if ( IOHIDQueueContainsElement(tIOHIDQueueRef, tIOHIDElementRef) ) {
IOHIDQueueRemoveElement(tIOHIDQueueRef, tIOHIDElementRef);
}
tIOHIDElementRef = HIDGetNextDeviceElement(tIOHIDElementRef, kHIDElementTypeIO);
}
// ensure queue is disposed and released
result = HIDDisposeReleaseQueue(inIOHIDDeviceRef);
if ( kIOReturnSuccess != result ) {
HIDReportErrorNum("Failed to dispose and release queue.", result);
}
} else {
HIDReportError("No queue for device passed to HIDDequeueElement.");
if ( kIOReturnSuccess == result ) {
result = kIOReturnError;
}
}
return (result);
} /* HIDDequeueDevice */
// ---------------------------------
// releases all device queues for quit or rebuild (must be called)
// does not release device interfaces, application must call ReleaseHIDDeviceList on exit
IOReturn HIDReleaseAllDeviceQueues(void) {
IOReturn result = kIOReturnSuccess;
IOHIDDeviceRef tIOHIDDeviceRef = HIDGetFirstDevice();
while ( tIOHIDDeviceRef ) {
result = HIDDequeueDevice(tIOHIDDeviceRef);
if ( kIOReturnSuccess != result ) {
HIDReportErrorNum("Could not dequeue device.", result);
}
tIOHIDDeviceRef = HIDGetNextDevice(tIOHIDDeviceRef);
}
return (result);
} /* HIDReleaseAllDeviceQueues */
// ---------------------------------
// Get the next event in the queue for a device
// elements or entire device should be queued prior to calling this with HIDQueueElement or HIDQueueDevice
// returns true if an event is avialable for the element and fills out *pHIDEvent structure, returns false otherwise
// Note: kIOReturnUnderrun returned from getNextEvent indicates an empty queue not an error condition
// Note: application should pass in a pointer to a IOHIDEventStruct cast to a void (for CFM compatibility)
unsigned char HIDGetEvent(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDValueRef *pIOHIDValueRef) {
if ( inIOHIDDeviceRef ) {
IOHIDQueueRef tIOHIDQueueRef = IOHIDDevice_GetQueue(inIOHIDDeviceRef);
if ( tIOHIDQueueRef ) {
if ( pIOHIDValueRef ) {
*pIOHIDValueRef = IOHIDQueueCopyNextValueWithTimeout(tIOHIDQueueRef, 0.0);
if ( *pIOHIDValueRef ) {
return (true);
}
}
} else {
HIDReportError("Could not get HID event, hid queue reference does not exist.");
}
} else {
HIDReportError("Could not get HID event, device does not exist.");
}
return (false); // did not get event
} /* HIDGetEvent */

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// File: HID_Utilities_External.h
// Abstract: External interface for HID Utilities, can be used with either library or source.
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#ifndef _HID_Utilities_External_h_
#define _HID_Utilities_External_h_
// ==================================
#ifdef __cplusplus
extern "C" {
#endif
// ==================================
//includes
#include <stdio.h>
#include "IOHIDLib_.h"
// ==================================
#ifndef _IOKIT_HID_IOHIDKEYS_H_
/*!
@typedef IOHIDElementCookie
@abstract Abstract data type used as a unique identifier for an element.
*/
#ifdef __LP64__
typedef uint32_t IOHIDElementCookie;
#else
typedef void *IOHIDElementCookie;
#endif
#endif
// Device and Element Interfaces
enum HIDElementTypeMask {
kHIDElementTypeInput = 1 << 1,
kHIDElementTypeOutput = 1 << 2,
kHIDElementTypeFeature = 1 << 3,
kHIDElementTypeCollection = 1 << 4,
kHIDElementTypeIO = kHIDElementTypeInput | kHIDElementTypeOutput | kHIDElementTypeFeature,
kHIDElementTypeAll = kHIDElementTypeIO | kHIDElementTypeCollection
};
typedef enum HIDElementTypeMask HIDElementTypeMask;
// ==================================
//*****************************************************
#pragma mark - exported globals
//-----------------------------------------------------
extern IOHIDManagerRef gIOHIDManagerRef;
extern CFMutableArrayRef gDeviceCFArrayRef;
extern CFArrayRef gElementCFArrayRef;
//*************************************************************************
//
// HIDBuildMultiDeviceList( inUsagePages, inUsages, inNumDeviceTypes )
//
// Purpose: builds list of devices with elements (allocates memory and captures devices) in which
// the devices could be of different types/usages list is allocated internally within HID
// Utilites and can be accessed via accessor functions structures within list are considered
// flat and user accessable, but not user modifiable can be called again to rebuild list to
// account for new devices (will do the right thing in case of disposing existing list)
// usagePage, usage are each a numDeviceTypes sized array of matching usage and usage pages
// returns true if succesful
//
// Inputs: inUsagePages - inNumDeviceTypes sized array of matching usage pages
// inUsages - inNumDeviceTypes sized array of matching usages
// inNumDeviceTypes - number of usage pages & usages
//
// Returns: Boolean - if successful
//
extern Boolean HIDBuildMultiDeviceList(const UInt32 *inUsagePages, const UInt32 *inUsages, int inNumDeviceTypes);
// same as above but this uses a single usagePage and usage
extern Boolean HIDBuildDeviceList(UInt32 usagePage, UInt32 usage);
// updates the current device list for any new/removed devices
// if this is called before HIDBuildDeviceList the it functions like HIDBuildMultiDeviceList
// usagePage, usage are each a numDeviceTypes sized array of matching usage and usage pages
// returns true if successful which means if any device were added or removed (the device config changed)
extern Boolean HIDUpdateDeviceList(const UInt32 *inUsagePages, const UInt32 *inUsages, int inNumDeviceTypes);
// release list built by above function
// MUST be called prior to application exit to properly release devices
// if not called (or app crashes) devices can be recovered by pluging into different location in USB chain
extern void HIDReleaseDeviceList(void);
//*************************************************************************
//
// HIDRebuildDevices( )
//
// Purpose: rebuilds the (internal) list of devices
//
// Inputs: none
//
// Returns: none
//
extern void HIDRebuildDevices(void);
// does a device list exist
extern unsigned char HIDHaveDeviceList(void);
// how many HID devices have been found
// returns 0 if no device list exist
extern UInt32 HIDCountDevices(void);
// how many elements does a specific device have
// returns 0 if device is invalid or NULL
// uses mask of HIDElementTypeMask to restrict element found
// use kHIDElementTypeIO to get non-collection elements
extern UInt32 HIDCountDeviceElements(IOHIDDeviceRef inIOHIDDeviceRef, HIDElementTypeMask typeMask);
// get the first device in the device list
// returns NULL if no list exists
extern IOHIDDeviceRef HIDGetFirstDevice(void);
// get next device in list given current device as parameter
// returns NULL if end of list
extern IOHIDDeviceRef HIDGetNextDevice(IOHIDDeviceRef inIOHIDDeviceRef);
// get the first element of device passed in as parameter
// returns NULL if no list exists or device does not exists or is NULL
// uses mask of HIDElementTypeMask to restrict element found
// use kHIDElementTypeIO to get previous HIDGetFirstDeviceElement functionality
extern IOHIDElementRef HIDGetFirstDeviceElement(IOHIDDeviceRef inIOHIDDeviceRef, HIDElementTypeMask typeMask);
// get next element of given device in list given current element as parameter
// will walk down each collection then to next element or collection (depthwise traverse)
// returns NULL if end of list
// uses mask of HIDElementTypeMask to restrict element found
// use kHIDElementTypeIO to get previous HIDGetNextDeviceElement functionality
extern IOHIDElementRef HIDGetNextDeviceElement(IOHIDElementRef inIOHidElementRef, HIDElementTypeMask typeMask);
// get previous element of given device in list given current element as parameter
// this walks directly up the tree to the top element and does not search at each level
// returns NULL if beginning of list
// uses mask of HIDElementTypeMask to restrict element found
// use kHIDElementTypeIO to get non-collection elements
extern IOHIDElementRef HIDGetPreviousDeviceElement(IOHIDElementRef inIOHidElementRef, HIDElementTypeMask typeMask);
// returns C string type name given a type enumeration passed in as parameter( see IOHIDKeys.h )
// returns empty string for invalid types
extern void HIDGetTypeName(IOHIDElementType inIOHIDElementType, char *outCStrName);
//*************************************************************************
//
// HIDCopyUsageName( inUsagePage, inUsage )
//
// Purpose: return a CFStringRef string for a given usage page & usage( see IOUSBHIDParser.h )
//
// Notes: returns usage page and usage values in CFString form for unknown values
//
// Inputs: inUsagePage - the usage page
// inUsage - the usage
//
// Returns: CFStringRef - the resultant string
//
extern CFStringRef HIDCopyUsageName(long inUsagePage, long inUsage);
// ==================================
// Element Event Queue and Value Interfaces
enum {
kDefaultUserMin = 0, // default user min and max used for scaling
kDefaultUserMax = 255
};
enum {
kDeviceQueueSize = 50 // this is wired kernel memory so should be set to as small as possible
// but should account for the maximum possible events in the queue
// USB updates will likely occur at 100 Hz so one must account for this rate of
// if states change quickly (updates are only posted on state changes)
};
// ==================================
// queues specific element, performing any device queue set up required
extern int HIDQueueElement(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDElementRef inIOHidElementRef);
// adds all elements to queue, performing any device queue set up required
extern int HIDQueueDevice(IOHIDDeviceRef inIOHIDDeviceRef);
// removes element for queue, if last element in queue will release queue and device
extern int HIDDequeueElement(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDElementRef inIOHidElementRef);
// completely removes all elements from queue and releases queue and device
extern int HIDDequeueDevice(IOHIDDeviceRef inIOHIDDeviceRef);
// releases all device queues for quit or rebuild (must be called)
extern int HIDReleaseAllDeviceQueues(void);
// returns true if an event is avialable for the element and fills out *pHIDEvent structure, returns false otherwise
// pHIDEvent is a poiner to a IOHIDEventStruct, using void here for compatibility, users can cast a required
extern unsigned char HIDGetEvent(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDValueRef *pIOHIDValueRef);
// ==================================
// Conguration and Save Interfaces
enum {
kPercentMove = 10 // precent of overall range a element must move to register
};
typedef struct HID_info_struct {
int actionCookie;
// device
// need to add serial number when I have a test case
struct {
int vendorID, productID;
int locID;
uint32_t usagePage, usage;
} device;
// elements
struct {
uint32_t usagePage, usage;
int minReport, maxReport;
IOHIDElementCookie cookie; // always 32 bits
} element;
}HID_info_rec, *HID_info_ptr;
// get vendor name from vendor ID
extern Boolean HIDGetVendorNameFromVendorID(long inVendorID, char *outCStrName);
// get product name from vendor/product ID
extern Boolean HIDGetProductNameFromVendorProductID(long inVendorID, long inProductID, char *outCStrName);
// get element name from vendor id/product id look up ( using element cookie )
extern Boolean HIDGetElementNameFromVendorProductCookie(int inVendorID,
int inProductID,
IOHIDElementCookie inCookie,
char * outCStrName);
// get element name from vendor id/product id look up ( using element usage page & usage )
extern Boolean HIDGetElementNameFromVendorProductUsage(long inVendorID,
long inProductID,
long inUsagePage,
long inUsage,
char *inCStrName);
// utility routines to dump device or element info
extern void HIDDumpDeviceInfo(IOHIDDeviceRef inIOHIDDeviceRef);
extern void HIDDumpElementInfo(IOHIDElementRef inIOHIDElementRef);
extern void HIDDumpElementCalibrationInfo(IOHIDElementRef inIOHIDElementRef);
// polls single device's elements for a change greater than kPercentMove. Times out after given time
// returns 1 and pointer to element if found
// returns 0 and NULL for both parameters if not found
extern unsigned char HIDConfigureSingleDeviceAction(IOHIDDeviceRef inIOHIDDeviceRef,
IOHIDElementRef *outIOHIDElementRef,
float timeout);
//*************************************************************************
//
// HIDConfigureAction( outDeviceRef, outElementRef, inTimeout )
//
// Purpose: polls all devices and elements for a change greater than kPercentMove.
// Times out after given time returns 1 and pointer to device and element
// if found; returns 0 and NULL for both parameters if not found
//
// Inputs: outDeviceRef - address where to store the device
// outElementRef - address where to store the element
// inTimeout - the timeout
// Returns: Boolean - TRUE if successful
// outDeviceRef - the device
// outElementRef - the element
//
extern Boolean HIDConfigureAction(IOHIDDeviceRef *outDeviceRef, IOHIDElementRef *outElementRef, float inTimeout);
//*************************************************************************
//
// HIDSaveElementPref( inKeyCFStringRef, inAppCFStringRef, inDeviceRef, inElementRef )
//
// Purpose: Save the device & element values into the specified key in the specified applications preferences
//
// Inputs: inKeyCFStringRef - the preference key
// inAppCFStringRef - the application identifier
// inDeviceRef - the device
// inElementRef - the element
// Returns: Boolean - if successful
//
extern Boolean HIDSaveElementPref(const CFStringRef inKeyCFStringRef,
CFStringRef inAppCFStringRef,
IOHIDDeviceRef inDeviceRef,
IOHIDElementRef inElementRef);
//*************************************************************************
//
// HIDRestoreElementPref( inKeyCFStringRef, inAppCFStringRef, outDeviceRef, outElementRef )
//
// Purpose: Find the specified preference in the specified application
//
// Inputs: inKeyCFStringRef - the preference key
// inAppCFStringRef - the application identifier
// outDeviceRef - address where to restore the device
// outElementRef - address where to restore the element
// Returns: Boolean - if successful
// outDeviceRef - the device
// outElementRef - the element
//
extern Boolean HIDRestoreElementPref(CFStringRef inKeyCFStringRef,
CFStringRef inAppCFStringRef,
IOHIDDeviceRef * outDeviceRef,
IOHIDElementRef *outElementRef);
//*************************************************************************
//
// HIDFindDeviceAndElement( inSearchInfo, outFoundDevice, outFoundElement )
//
// Purpose: find the closest matching device and element for this action
//
// Notes: matches device: serial, vendorID, productID, location, inUsagePage, usage
// matches element: cookie, inUsagePage, usage,
//
// Inputs: inSearchInfo - the device & element info we searching for
// outFoundDevice - the address of the best matching device
// outFoundElement - the address of the best matching element
//
// Returns: Boolean - TRUE if we find a match
// outFoundDevice - the best matching device
// outFoundElement - the best matching element
//
extern Boolean HIDFindDeviceAndElement(const HID_info_rec *inSearchInfo,
IOHIDDeviceRef * outFoundDevice,
IOHIDElementRef * outFoundElement);
// -- These are routines to use if the applcationwants HID Utilities to do the file handling --
// Note: the FILE * is a MachO posix FILE and will not likely work directly with MW MSL FILE * type.
// take input records, save required info
// assume file is open and at correct position.
void HIDSaveElementConfig(FILE *fileRef, IOHIDDeviceRef inIOHIDDeviceRef, IOHIDElementRef inIOHidElementRef, int actionCookie);
// takes a file, reads one record (assume file position is correct and file is open)
// search for matching device
// return tIOHIDDeviceRef, tIOHIDElementRef and cookie for action
int HIDRestoreElementConfig(FILE *fileRef, IOHIDDeviceRef *outIOHIDDeviceRef, IOHIDElementRef *outIOHIDElementRef);
// -- These are routines to use if the client wants to use their own file handling --
// Set up a config record for saving
// takes an input records, returns record user can save as they want
// Note: the save rec must be pre-allocated by the calling app and will be filled out
void HIDSetElementConfig(HID_info_ptr inHIDInfoPtr,
IOHIDDeviceRef inIOHIDDeviceRef,
IOHIDElementRef inIOHidElementRef,
int actionCookie);
// Get matching element from config record
// takes a pre-allocated and filled out config record
// search for matching device
// return tIOHIDDeviceRef, tIOHIDElementRef and cookie for action
int HIDGetElementConfig(HID_info_ptr inHIDInfoPtr, IOHIDDeviceRef *outIOHIDDeviceRef, IOHIDElementRef *outIOHIDElementRef);
// ==================================
// Error reporter, can be set to report however the application desires
extern void HIDReportError(const char *strError);
// Error with numeric code reporter, can be set to report however the application desires
extern void HIDReportErrorNum(const char *strError, int numError);
#ifdef __cplusplus
}
#endif
#endif // _HID_Utilities_External_h_

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// File: IOHIDDevice_.c
// Abstract: convieance functions for IOHIDDeviceGetProperty
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#pragma mark - includes & imports
//-----------------------------------------------------
#include "IOHIDDevice_.h"
//*****************************************************
#pragma mark - typedef's, struct's, enums, defines, etc.
//-----------------------------------------------------
#define kIOHIDDevice_TransactionKey "DeviceTransactionRef"
#define kIOHIDDevice_QueueKey "DeviceQueueRef"
//*****************************************************
#pragma mark - local (static) function prototypes
//-----------------------------------------------------
static Boolean IOHIDDevice_GetLongProperty(IOHIDDeviceRef inIOHIDDeviceRef, CFStringRef inKey, long *outValue);
static void IOHIDDevice_SetLongProperty(IOHIDDeviceRef inIOHIDDeviceRef, CFStringRef inKey, long inValue);
//*****************************************************
#pragma mark - exported globals
//-----------------------------------------------------
//*****************************************************
#pragma mark - local (static) globals
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported function implementations
//-----------------------------------------------------
//*************************************************************************
//
// HIDIsValidDevice( inIOHIDDeviceRef )
//
// Purpose: validate this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: Boolean - TRUE if we find the device in our( internal ) device list
//
Boolean HIDIsValidDevice(IOHIDDeviceRef inIOHIDDeviceRef) {
Boolean result = FALSE; // assume failure (pessimist!)
if ( inIOHIDDeviceRef ) {
if ( CFGetTypeID(inIOHIDDeviceRef) ==IOHIDDeviceGetTypeID() ) {
result = TRUE;
}
}
return (result);
} // HIDIsValidDevice
//*************************************************************************
//
// IOHIDDevice_GetTransport( inIOHIDDeviceRef )
//
// Purpose: get the Transport CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the Transport for this device
//
CFStringRef IOHIDDevice_GetTransport(IOHIDDeviceRef inIOHIDDeviceRef) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
return ( IOHIDDeviceGetProperty( inIOHIDDeviceRef, CFSTR(kIOHIDTransportKey) ) );
}
//*************************************************************************
//
// IOHIDDevice_GetVendorID( inIOHIDDeviceRef )
//
// Purpose: get the vendor ID for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the vendor ID for this device
//
long IOHIDDevice_GetVendorID(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDVendorIDKey), &result);
return (result);
} // IOHIDDevice_GetVendorID
//*************************************************************************
//
// IOHIDDevice_GetVendorIDSource( inIOHIDDeviceRef )
//
// Purpose: get the VendorIDSource for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the VendorIDSource for this device
//
long IOHIDDevice_GetVendorIDSource(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDVendorIDSourceKey), &result);
return (result);
} // IOHIDDevice_GetVendorIDSource
//*************************************************************************
//
// IOHIDDevice_GetProductID( inIOHIDDeviceRef )
//
// Purpose: get the product ID for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the product ID for this device
//
long IOHIDDevice_GetProductID(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDProductIDKey), &result);
return (result);
} // IOHIDDevice_GetProductID
//*************************************************************************
//
// IOHIDDevice_GetVersionNumber( inIOHIDDeviceRef )
//
// Purpose: get the VersionNumber CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the VersionNumber for this device
//
long IOHIDDevice_GetVersionNumber(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDVersionNumberKey), &result);
return (result);
} // IOHIDDevice_GetVersionNumber
//*************************************************************************
//
// IOHIDDevice_GetManufacturer( inIOHIDDeviceRef )
//
// Purpose: get the Manufacturer CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the Manufacturer for this device
//
CFStringRef IOHIDDevice_GetManufacturer(IOHIDDeviceRef inIOHIDDeviceRef) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
return ( IOHIDDeviceGetProperty( inIOHIDDeviceRef, CFSTR(kIOHIDManufacturerKey) ) );
} // IOHIDDevice_GetManufacturer
//*************************************************************************
//
// IOHIDDevice_GetProduct( inIOHIDDeviceRef )
//
// Purpose: get the Product CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the Product for this device
//
CFStringRef IOHIDDevice_GetProduct(IOHIDDeviceRef inIOHIDDeviceRef) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
return ( IOHIDDeviceGetProperty( inIOHIDDeviceRef, CFSTR(kIOHIDProductKey) ) );
} // IOHIDDevice_GetProduct
//*************************************************************************
//
// IOHIDDevice_GetSerialNumber( inIOHIDDeviceRef )
//
// Purpose: get the SerialNumber CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the SerialNumber for this device
//
CFStringRef IOHIDDevice_GetSerialNumber(IOHIDDeviceRef inIOHIDDeviceRef) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
return ( IOHIDDeviceGetProperty( inIOHIDDeviceRef, CFSTR(kIOHIDSerialNumberKey) ) );
}
//*************************************************************************
//
// IOHIDDevice_GetCountryCode( inIOHIDDeviceRef )
//
// Purpose: get the CountryCode CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the CountryCode for this device
//
long IOHIDDevice_GetCountryCode(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDCountryCodeKey), &result);
return (result);
} // IOHIDDevice_GetCountryCode
//*************************************************************************
//
// IOHIDDevice_GetLocationID( inIOHIDDeviceRef )
//
// Purpose: get the location ID for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the location ID for this device
//
long IOHIDDevice_GetLocationID(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDLocationIDKey), &result);
return (result);
} // IOHIDDevice_GetLocationID
//*************************************************************************
//
// IOHIDDevice_GetUsage( inIOHIDDeviceRef )
//
// Purpose: get the usage for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: uint32_t - the usage for this device
//
uint32_t IOHIDDevice_GetUsage(IOHIDDeviceRef inIOHIDDeviceRef) {
uint32_t result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDDeviceUsageKey), (long *) &result);
return (result);
} // IOHIDDevice_GetUsage
//*************************************************************************
//
// IOHIDDevice_GetUsagePage( inIOHIDDeviceRef )
//
// Purpose: get the usage page for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: uint32_t - the usage page for this device
//
uint32_t IOHIDDevice_GetUsagePage(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDDeviceUsagePageKey), &result);
return (result);
} // IOHIDDevice_GetUsagePage
//*************************************************************************
//
// IOHIDDevice_GetUsagePairs( inIOHIDDeviceRef )
//
// Purpose: get the UsagePairs CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFArrayRef - the UsagePairs for this device
//
CFArrayRef IOHIDDevice_GetUsagePairs(IOHIDDeviceRef inIOHIDDeviceRef) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
return ( IOHIDDeviceGetProperty( inIOHIDDeviceRef, CFSTR(kIOHIDDeviceUsagePairsKey) ) );
}
//*************************************************************************
//
// IOHIDDevice_GetPrimaryUsage( inIOHIDDeviceRef )
//
// Purpose: get the PrimaryUsage CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the PrimaryUsage for this device
//
uint32_t IOHIDDevice_GetPrimaryUsage(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDPrimaryUsageKey), &result);
return (result);
} // IOHIDDevice_GetPrimaryUsage
//*************************************************************************
//
// IOHIDDevice_GetPrimaryUsagePage( inIOHIDDeviceRef )
//
// Purpose: get the PrimaryUsagePage CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the PrimaryUsagePage for this device
//
uint32_t IOHIDDevice_GetPrimaryUsagePage(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDPrimaryUsagePageKey), &result);
return (result);
} // IOHIDDevice_GetPrimaryUsagePage
//*************************************************************************
//
// IOHIDDevice_GetMaxInputReportSize( inIOHIDDeviceRef )
//
// Purpose: get the MaxInputReportSize CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the MaxInputReportSize for this device
//
long IOHIDDevice_GetMaxInputReportSize(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDMaxInputReportSizeKey), &result);
return (result);
} // IOHIDDevice_GetMaxInputReportSize
//*************************************************************************
//
// IOHIDDevice_GetMaxOutputReportSize( inIOHIDDeviceRef )
//
// Purpose: get the MaxOutputReportSize for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the MaxOutput for this device
//
long IOHIDDevice_GetMaxOutputReportSize(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDMaxOutputReportSizeKey), &result);
return (result);
} // IOHIDDevice_GetMaxOutputReportSize
//*************************************************************************
//
// IOHIDDevice_GetMaxFeatureReportSize( inIOHIDDeviceRef )
//
// Purpose: get the MaxFeatureReportSize for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the MaxFeatureReportSize for this device
//
long IOHIDDevice_GetMaxFeatureReportSize(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDMaxFeatureReportSizeKey), &result);
return (result);
} // IOHIDDevice_GetMaxFeatureReportSize
//*************************************************************************
//
// IOHIDDevice_GetReportInterval( inIOHIDDeviceRef )
//
// Purpose: get the ReportInterval for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the ReportInterval for this device
//
#ifndef kIOHIDReportIntervalKey
#define kIOHIDReportIntervalKey "ReportInterval"
#endif
long IOHIDDevice_GetReportInterval(IOHIDDeviceRef inIOHIDDeviceRef) {
long result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDReportIntervalKey), &result);
return (result);
} // IOHIDDevice_GetReportInterval
//*************************************************************************
//
// IOHIDDevice_GetQueue( inIOHIDDeviceRef )
//
// Purpose: get the Queue for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: IOHIDQueueRef - the Queue for this device
//
IOHIDQueueRef IOHIDDevice_GetQueue(IOHIDDeviceRef inIOHIDDeviceRef) {
IOHIDQueueRef result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDDevice_QueueKey), (long *) &result);
if ( result ) {
assert( IOHIDQueueGetTypeID() == CFGetTypeID(result) );
}
return (result);
} // IOHIDDevice_GetQueue
//*************************************************************************
//
// IOHIDDevice_SetQueue( inIOHIDDeviceRef, inQueueRef )
//
// Purpose: Set the Queue for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
// inQueueRef - the Queue reference
//
// Returns: nothing
//
void IOHIDDevice_SetQueue(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDQueueRef inQueueRef) {
IOHIDDevice_SetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDDevice_QueueKey), (long) inQueueRef);
}
//*************************************************************************
//
// IOHIDDevice_GetTransaction( inIOHIDDeviceRef )
//
// Purpose: get the Transaction for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: IOHIDTransactionRef - the Transaction for this device
//
IOHIDTransactionRef IOHIDDevice_GetTransaction(IOHIDDeviceRef inIOHIDDeviceRef) {
IOHIDTransactionRef result = 0;
(void) IOHIDDevice_GetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDDevice_TransactionKey), (long *) &result);
return (result);
} // IOHIDDevice_GetTransaction
//*************************************************************************
//
// IOHIDDevice_SetTransaction( inIOHIDDeviceRef, inTransactionRef )
//
// Purpose: Set the Transaction for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
// inTransactionRef - the Transaction reference
//
// Returns: nothing
//
void IOHIDDevice_SetTransaction(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDTransactionRef inTransactionRef) {
IOHIDDevice_SetLongProperty(inIOHIDDeviceRef, CFSTR(kIOHIDDevice_TransactionKey), (long) inTransactionRef);
}
//*****************************************************
#pragma mark - local (static) function implementations
//-----------------------------------------------------
//*************************************************************************
//
// IOHIDDevice_GetLongProperty( inIOHIDDeviceRef, inKey, outValue )
//
// Purpose: convieance function to return a long property of a device
//
// Inputs: inIOHIDDeviceRef - the device
// inKey - CFString for the
// outValue - address where to restore the element
// Returns: the action cookie
// outValue - the device
//
static Boolean IOHIDDevice_GetLongProperty(IOHIDDeviceRef inIOHIDDeviceRef, CFStringRef inKey, long *outValue) {
Boolean result = FALSE;
if ( inIOHIDDeviceRef ) {
assert( IOHIDDeviceGetTypeID() == CFGetTypeID(inIOHIDDeviceRef) );
CFTypeRef tCFTypeRef = IOHIDDeviceGetProperty(inIOHIDDeviceRef, inKey);
if ( tCFTypeRef ) {
// if this is a number
if ( CFNumberGetTypeID() == CFGetTypeID(tCFTypeRef) ) {
// get it's value
result = CFNumberGetValue( (CFNumberRef) tCFTypeRef, kCFNumberSInt32Type, outValue );
}
}
}
return (result);
} // IOHIDDevice_GetLongProperty
//*************************************************************************
//
// IOHIDDevice_SetLongProperty( inIOHIDDeviceRef, inKey, inValue )
//
// Purpose: convieance function to set a long property of an Device
//
// Inputs: inIOHIDDeviceRef - the Device
// inKey - CFString for the key
// inValue - the value to set it to
// Returns: nothing
//
static void IOHIDDevice_SetLongProperty(IOHIDDeviceRef inIOHIDDeviceRef, CFStringRef inKey, long inValue) {
CFNumberRef tCFNumberRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &inValue);
if ( tCFNumberRef ) {
IOHIDDeviceSetProperty(inIOHIDDeviceRef, inKey, tCFNumberRef);
CFRelease(tCFNumberRef);
}
} // IOHIDDevice_SetLongProperty
//*****************************************************

422
src/cocoa/IOHIDDevice_.h Executable file
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@ -0,0 +1,422 @@
// File: IOHIDDevice_.h
// Abstract: convieance functions for IOHIDDeviceGetProperty
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#ifndef __IOHIDDevice__
#define __IOHIDDevice__
//*****************************************************
#pragma mark - includes & imports
#include <AvailabilityMacros.h>
#include "IOHIDLib_.h"
//*****************************************************
#if PRAGMA_ONCE
#pragma once
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if PRAGMA_IMPORT
#pragma import on
#endif
#if PRAGMA_STRUCT_ALIGN
#pragma options align=mac68k
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
#pragma pack(2)
#endif
//*****************************************************
#pragma mark - typedef's, struct's, enums, defines, etc.
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported globals
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported function prototypes
//-----------------------------------------------------
//*************************************************************************
//
// HIDIsValidDevice( inIOHIDDeviceRef )
//
// Purpose: validate this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: Boolean - TRUE if we find the device in our( internal ) device list
//
extern Boolean HIDIsValidDevice(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetTransport( inIOHIDDeviceRef )
//
// Purpose: get the Transport CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the Transport CFString for this device
//
extern CFStringRef IOHIDDevice_GetTransport(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetVendorID( inIOHIDDeviceRef )
//
// Purpose: get the vendor ID for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the vendor ID for this device
//
extern long IOHIDDevice_GetVendorID(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetVendorIDSource( inIOHIDDeviceRef )
//
// Purpose: get the VendorIDSource for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the VendorIDSource for this device
//
extern long IOHIDDevice_GetVendorIDSource(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetProductID( inIOHIDDeviceRef )
//
// Purpose: get the product ID for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the product ID for this device
//
extern long IOHIDDevice_GetProductID(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetVersionNumber( inIOHIDDeviceRef )
//
// Purpose: get the VersionNumber CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the VersionNumber for this device
//
extern long IOHIDDevice_GetVersionNumber(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetManufacturer( inIOHIDDeviceRef )
//
// Purpose: get the Manufacturer CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the Manufacturer CFString for this device
//
extern CFStringRef IOHIDDevice_GetManufacturer(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetProduct( inIOHIDDeviceRef )
//
// Purpose: get the Product CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the Product CFString for this device
//
extern CFStringRef IOHIDDevice_GetProduct(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetSerialNumber( inIOHIDDeviceRef )
//
// Purpose: get the SerialNumber CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the SerialNumber CFString for this device
//
extern CFStringRef IOHIDDevice_GetSerialNumber(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetCountryCode( inIOHIDDeviceRef )
//
// Purpose: get the CountryCode CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the CountryCode for this device
//
extern long IOHIDDevice_GetCountryCode(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetLocationID( inIOHIDDeviceRef )
//
// Purpose: get the location ID for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the location ID for this device
//
extern long IOHIDDevice_GetLocationID(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetUsage( inIOHIDDeviceRef )
//
// Purpose: get the usage for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: uint32_t - the usage for this device
//
extern uint32_t IOHIDDevice_GetUsage(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetUsagePage( inIOHIDDeviceRef )
//
// Purpose: get the usage page for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: uint32_t - the usage page for this device
//
extern uint32_t IOHIDDevice_GetUsagePage(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetUsagePairs( inIOHIDDeviceRef )
//
// Purpose: get the UsagePairs CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFArrayRef - the UsagePairs for this device
//
extern CFArrayRef IOHIDDevice_GetUsagePairs(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetPrimaryUsage( inIOHIDDeviceRef )
//
// Purpose: get the PrimaryUsage CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the PrimaryUsage CFString for this device
//
extern uint32_t IOHIDDevice_GetPrimaryUsage(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetPrimaryUsagePage( inIOHIDDeviceRef )
//
// Purpose: get the PrimaryUsagePage CFString for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: CFStringRef - the PrimaryUsagePage CFString for this device
//
extern uint32_t IOHIDDevice_GetPrimaryUsagePage(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetMaxInputReportSize( inIOHIDDeviceRef )
//
// Purpose: get the MaxInputReportSize for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the MaxInputReportSize for this device
//
extern long IOHIDDevice_GetMaxInputReportSize(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetMaxOutputReportSize( inIOHIDDeviceRef )
//
// Purpose: get the MaxOutputReportSize for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the MaxOutputReportSize for this device
//
extern long IOHIDDevice_GetMaxOutputReportSize(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetMaxFeatureReportSize( inIOHIDDeviceRef )
//
// Purpose: get the MaxFeatureReportSize for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the MaxFeatureReportSize for this device
//
extern long IOHIDDevice_GetMaxFeatureReportSize(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetReportInterval( inIOHIDDeviceRef )
//
// Purpose: get the ReportInterval for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: long - the ReportInterval for this device
//
extern long IOHIDDevice_GetReportInterval(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_GetQueue( inIOHIDDeviceRef )
//
// Purpose: get the Queue for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: IOHIDQueueRef - the Queue for this device
//
extern IOHIDQueueRef IOHIDDevice_GetQueue(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_SetQueue( inIOHIDDeviceRef, inQueueRef )
//
// Purpose: Set the Queue for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
// inQueueRef - the Queue
//
// Returns: nothing
//
extern void IOHIDDevice_SetQueue(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDQueueRef inQueueRef);
//*************************************************************************
//
// IOHIDDevice_GetTransaction( inIOHIDDeviceRef )
//
// Purpose: get the Transaction for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
//
// Returns: IOHIDTransactionRef - the Transaction for this device
//
extern IOHIDTransactionRef IOHIDDevice_GetTransaction(IOHIDDeviceRef inIOHIDDeviceRef);
//*************************************************************************
//
// IOHIDDevice_SetTransaction( inIOHIDDeviceRef, inTransactionRef )
//
// Purpose: Set the Transaction for this device
//
// Inputs: inIOHIDDeviceRef - the IDHIDDeviceRef for this device
// inTransactionRef - the Transaction
//
// Returns: nothing
//
extern void IOHIDDevice_SetTransaction(IOHIDDeviceRef inIOHIDDeviceRef, IOHIDTransactionRef inTransactionRef);
//*****************************************************
#if PRAGMA_STRUCT_ALIGN
#pragma options align=reset
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
#pragma pack()
#endif
#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif
#ifdef __cplusplus
}
#endif
#endif // __IOHIDDevice__ //

502
src/cocoa/IOHIDElement_.c Executable file
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@ -0,0 +1,502 @@
// File: IOHIDElement_.c
// Abstract: convieance functions for IOHIDElementGetProperty
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#pragma mark - includes & imports
//-----------------------------------------------------
#include "IOHIDElement_.h"
//*****************************************************
#pragma mark - typedef's, struct's, enums, defines, etc.
//-----------------------------------------------------
//*****************************************************
#pragma mark - local (static) function prototypes
//-----------------------------------------------------
// static Boolean IOHIDElement_GetLongProperty( IOHIDElementRef inElementRef, CFStringRef inKey, long * outValue );
// static void IOHIDElement_SetLongProperty( IOHIDElementRef inElementRef, CFStringRef inKey, long inValue );
//*****************************************************
#pragma mark - exported globals
//-----------------------------------------------------
//*****************************************************
#pragma mark - local (static) globals
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported function implementations
//-----------------------------------------------------
//*************************************************************************
//
// HIDIsValidElement( inIOHIDElementRef )
//
// Purpose: validate this element
//
// Inputs: inIOHIDElementRef - the element
//
// Returns: Boolean - TRUE if this is a valid element ref
//
Boolean HIDIsValidElement(IOHIDElementRef inIOHIDElementRef) {
Boolean result = FALSE; // assume failure (pessimist!)
if ( inIOHIDElementRef ) {
if ( CFGetTypeID(inIOHIDElementRef) ==IOHIDElementGetTypeID() ) {
result = TRUE;
}
}
return (result);
} // HIDIsValidElement
//*************************************************************************
//
// IOHIDElement_GetValue( inElementRef, inIOHIDValueScaleType )
//
// Purpose: returns the current value for an element( polling )
//
// Notes: will return 0 on error conditions which should be accounted for by application
//
// Inputs: inElementRef - the element
// inIOHIDValueScaleType - scale type ( calibrated or physical )
//
// Returns: double - current value for element
//
double IOHIDElement_GetValue(IOHIDElementRef inElementRef, IOHIDValueScaleType inIOHIDValueScaleType) {
long result = 0;
IOHIDValueRef tIOHIDValueRef;
if ( kIOReturnSuccess == IOHIDDeviceGetValue(IOHIDElementGetDevice(inElementRef), inElementRef, &tIOHIDValueRef) ) {
result = IOHIDValueGetScaledValue(tIOHIDValueRef, inIOHIDValueScaleType);
}
return (result);
} // IOHIDElement_GetValue
//*************************************************************************
//
// IOHIDElement_GetCalibrationMin( inElementRef )
//
// Purpose: get the minimum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the minimum Calibration value for this element
//
CFIndex IOHIDElement_GetCalibrationMin(IOHIDElementRef inElementRef) {
CFIndex result;
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationMinKey), &result) ) {
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementMaxKey), &result) ) {
result = 0x7FFFFFFF;
}
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationMinKey), result);
}
return (result);
} // IOHIDElement_GetCalibrationMin
//*************************************************************************
//
// IOHIDElement_SetCalibrationMin( inElementRef, inValue )
//
// Purpose: set the minimum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the minimum bounds for a calibrated value for this element
//
// Returns: nothing
//
void IOHIDElement_SetCalibrationMin(IOHIDElementRef inElementRef, CFIndex inValue) {
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationMinKey), inValue);
} // IOHIDElement_SetCalibrationMin
//*************************************************************************
//
// IOHIDElement_GetCalibrationMax( inElementRef )
//
// Purpose: get the maximum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
CFIndex IOHIDElement_GetCalibrationMax(IOHIDElementRef inElementRef) {
CFIndex result;
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationMaxKey), &result) ) {
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementMinKey), &result) ) {
result = -0x7FFFFFFF;
}
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationMaxKey), result);
}
return (result);
} // IOHIDElement_GetCalibrationMax
//*************************************************************************
//
// IOHIDElement_SetCalibrationMax( inElementRef, inValue )
//
// Purpose: set the maximum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
void IOHIDElement_SetCalibrationMax(IOHIDElementRef inElementRef, CFIndex inValue) {
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationMaxKey), inValue);
} // IOHIDElement_SetCalibrationMax
//*************************************************************************
//
// IOHIDElement_GetCalibrationSaturationMin( inElementRef )
//
// Purpose: get the mininum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
CFIndex IOHIDElement_GetCalibrationSaturationMin(IOHIDElementRef inElementRef) {
CFIndex result;
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationSaturationMinKey), &result) ) {
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementMinKey), &result) ) {
result = -0x7FFFFFFF;
}
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationSaturationMinKey), result);
}
return (result);
} // IOHIDElement_GetCalibrationSaturationMin
//*************************************************************************
//
// IOHIDElement_SetCalibrationSaturationMin( inElementRef, inValue )
//
// Purpose: set the mininum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
void IOHIDElement_SetCalibrationSaturationMin(IOHIDElementRef inElementRef, CFIndex inValue) {
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationSaturationMinKey), inValue);
} // IOHIDElement_SetCalibrationSaturationMin
//*************************************************************************
//
// IOHIDElement_GetCalibrationSaturationMax( inElementRef )
//
// Purpose: get the maximum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
CFIndex IOHIDElement_GetCalibrationSaturationMax(IOHIDElementRef inElementRef) {
CFIndex result;
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationSaturationMaxKey), &result) ) {
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementMinKey), &result) ) {
result = -0x7FFFFFFF;
}
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationSaturationMaxKey), result);
}
return (result);
} // IOHIDElement_GetCalibrationSaturationMax
//*************************************************************************
//
// IOHIDElement_SetCalibrationSaturationMax( inElementRef, inValue )
//
// Purpose: set the maximum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
void IOHIDElement_SetCalibrationSaturationMax(IOHIDElementRef inElementRef, CFIndex inValue) {
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationSaturationMaxKey), inValue);
} // IOHIDElement_SetCalibrationSaturationMax
//*************************************************************************
//
// IOHIDElement_GetCalibrationDeadZoneMin( inElementRef )
//
// Purpose: get the minimum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
CFIndex IOHIDElement_GetCalibrationDeadZoneMin(IOHIDElementRef inElementRef) {
CFIndex result;
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationDeadZoneMinKey), &result) ) {
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementMinKey), &result) ) {
result = -0x7FFFFFFF;
}
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationDeadZoneMinKey), result);
}
return (result);
} // IOHIDElement_GetCalibrationDeadZoneMin
//*************************************************************************
//
// IOHIDElement_SetCalibrationDeadZoneMin( inElementRef, inValue )
//
// Purpose: set the minimum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
void IOHIDElement_SetCalibrationDeadZoneMin(IOHIDElementRef inElementRef, CFIndex inValue) {
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationDeadZoneMinKey), inValue);
} // IOHIDElement_SetCalibrationDeadZoneMin
//*************************************************************************
//
// IOHIDElement_GetCalibrationDeadZoneMax( inElementRef )
//
// Purpose: get the maximum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
CFIndex IOHIDElement_GetCalibrationDeadZoneMax(IOHIDElementRef inElementRef) {
CFIndex result;
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationDeadZoneMaxKey), &result) ) {
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementMinKey), &result) ) {
result = -0x7FFFFFFF;
}
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationDeadZoneMaxKey), result);
}
return (result);
} // IOHIDElement_GetCalibrationDeadZoneMax
//*************************************************************************
//
// IOHIDElement_SetCalibrationDeadZoneMax( inElementRef, inValue )
//
// Purpose: set the maximum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
void IOHIDElement_SetCalibrationDeadZoneMax(IOHIDElementRef inElementRef, CFIndex inValue) {
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationDeadZoneMaxKey), inValue);
} // IOHIDElement_SetCalibrationDeadZoneMax
//*************************************************************************
//
// IOHIDElement_GetCalibrationGranularity( inElementRef )
//
// Purpose: get the level of detail returned for a calibrated element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: double_t - the maximum Calibration value for this element
//
double_t IOHIDElement_GetCalibrationGranularity(IOHIDElementRef inElementRef) {
CFIndex result;
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationGranularityKey), &result) ) {
if ( !IOHIDElement_GetLongProperty(inElementRef, CFSTR(kIOHIDElementMinKey), &result) ) {
result = -0x7FFFFFFF;
}
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationGranularityKey), result);
}
return (result);
} // IOHIDElement_GetCalibrationGranularity
//*************************************************************************
//
// IOHIDElement_SetCalibrationGranularity( inElementRef, inValue )
//
// Purpose: set the level of detail returned for a calibrated element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the the level of detail for this element
//
// Returns: nothing
//
void IOHIDElement_SetCalibrationGranularity(IOHIDElementRef inElementRef, double_t inValue) {
IOHIDElement_SetLongProperty(inElementRef, CFSTR(kIOHIDElementCalibrationGranularityKey), inValue);
} // IOHIDElement_SetCalibrationGranularity
//*************************************************************************
//
// IOHIDElement_SetupCalibration( inElementRef )
//
// Purpose: set default values for the element calibration parameters
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: nothing
//
void IOHIDElement_SetupCalibration(IOHIDElementRef inIOHIDElementRef) {
// these are the min/max values returned by IOHIDValueGetScaledValue( v, kIOHIDValueScaleTypeCalibrated );
IOHIDElement_SetCalibrationMin( inIOHIDElementRef, IOHIDElementGetLogicalMin(inIOHIDElementRef) );
IOHIDElement_SetCalibrationMax( inIOHIDElementRef, IOHIDElementGetLogicalMax(inIOHIDElementRef) );
// this is the granularity of the values returned by IOHIDValueGetScaledValue( v, kIOHIDValueScaleTypeCalibrated );
// for example if set to 0.1 the values returned will be multiples of 0.1 ( 0.1, 0.2, 0.3, etc. )
IOHIDElement_SetCalibrationGranularity(inIOHIDElementRef, 0.);
// these define the dead zone (like in the middel of joystick axis)
IOHIDElement_SetCalibrationDeadZoneMin(inIOHIDElementRef, 0);
IOHIDElement_SetCalibrationDeadZoneMax(inIOHIDElementRef, 0);
#if 1
// get the current value of this element
double value = IOHIDElement_GetValue(inIOHIDElementRef, kIOHIDValueScaleTypePhysical);
// use it as our min/mas saturation
IOHIDElement_SetCalibrationSaturationMin(inIOHIDElementRef, value);
IOHIDElement_SetCalibrationSaturationMax(inIOHIDElementRef, value);
#else
// calculate the middle physical value we would expect from this element
CFIndex valueMin = IOHIDElementGetPhysicalMin(inIOHIDElementRef);
CFIndex valueMax = IOHIDElementGetPhysicalMax(inIOHIDElementRef);
CFIndex valueMid = (valueMin + valueMax) / 2;
// use it as our min/mas saturation
// this value determines the min/max values that have been recieved from the device element
IOHIDElement_SetCalibrationSaturationMin(inIOHIDElementRef, valueMid);
IOHIDElement_SetCalibrationSaturationMax(inIOHIDElementRef, valueMid);
// get the current value of this element
double value = IOHIDElement_GetValue(inIOHIDElementRef, kIOHIDValueScaleTypePhysical);
// and use it to adjust the current saturation values if it's outside their range
if ( value < IOHIDElement_GetCalibrationSaturationMin(inIOHIDElementRef) ) {
IOHIDElement_SetCalibrationSaturationMin(inIOHIDElementRef, value);
}
if ( value > IOHIDElement_GetCalibrationSaturationMax(inIOHIDElementRef) ) {
IOHIDElement_SetCalibrationSaturationMax(inIOHIDElementRef, value);
}
#endif
} // IOHIDElement_SetupCalibration
//*****************************************************
#pragma mark - local (static) function implementations
//-----------------------------------------------------
//*************************************************************************
//
// IOHIDElement_GetLongProperty( inElementRef, inKey, outValue )
//
// Purpose: convieance function to return a long property of an element
//
// Inputs: inElementRef - the element
// inKey - CFString for the key
// outValue - address where to store the value
// Returns: Boolean - TRUE if successful
// outValue - the long property's value
//
Boolean IOHIDElement_GetLongProperty(IOHIDElementRef inElementRef, CFStringRef inKey, long *outValue) {
Boolean result = FALSE;
CFTypeRef tCFTypeRef = IOHIDElementGetProperty(inElementRef, inKey);
if ( tCFTypeRef ) {
// if this is a number
if ( CFNumberGetTypeID() == CFGetTypeID(tCFTypeRef) ) {
// get it's value
result = CFNumberGetValue( (CFNumberRef) tCFTypeRef, kCFNumberSInt32Type, outValue );
}
}
return (result);
} /* IOHIDElement_GetLongProperty */
//*************************************************************************
//
// IOHIDElement_SetLongProperty( inElementRef, inKey, inValue )
//
// Purpose: convieance function to set a long property of an element
//
// Inputs: inElementRef - the element
// inKey - CFString for the key
// inValue - the value to set it to
//
// Returns: nothing
//
void IOHIDElement_SetLongProperty(IOHIDElementRef inElementRef, CFStringRef inKey, long inValue) {
CFNumberRef tCFNumberRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &inValue);
if ( tCFNumberRef ) {
IOHIDElementSetProperty(inElementRef, inKey, tCFNumberRef);
CFRelease(tCFNumberRef);
}
} // IOHIDElement_SetLongProperty
//*****************************************************

339
src/cocoa/IOHIDElement_.h Executable file
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@ -0,0 +1,339 @@
// File: IOHIDElement_.h
// Abstract: convieance functions for IOHIDElementGetProperty
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#ifndef __IOHIDElement___
#define __IOHIDElement___
//*****************************************************
#pragma mark - includes & imports
#include <AvailabilityMacros.h>
#include "IOHIDLib_.h"
//*****************************************************
#if PRAGMA_ONCE
#pragma once
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if PRAGMA_IMPORT
#pragma import on
#endif
#if PRAGMA_STRUCT_ALIGN
#pragma options align=mac68k
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
#pragma pack(2)
#endif
//*****************************************************
#pragma mark - typedef's, struct's, enums, defines, etc.
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported globals
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported function prototypes
//-----------------------------------------------------
//*************************************************************************
//
// HIDIsValidElement( inIOHIDElementRef )
//
// Purpose: validate this element
//
// Inputs: inIOHIDElementRef - the element
//
// Returns: Boolean - TRUE if this is a valid element ref
//
extern Boolean HIDIsValidElement(IOHIDElementRef inIOHIDElementRef);
//*************************************************************************
//
// IOHIDElement_GetValue( inElementRef, inIOHIDValueScaleType )
//
// Purpose: returns the current value for an element( polling )
//
// Notes: will return 0 on error conditions which should be accounted for by application
//
// Inputs: inElementRef - the element
// inIOHIDValueScaleType - scale type ( calibrated or physical )
//
// Returns: double - current value for element
//
extern double IOHIDElement_GetValue(IOHIDElementRef inElementRef, IOHIDValueScaleType inIOHIDValueScaleType);
//*************************************************************************
//
// IOHIDElement_GetCalibrationMin( inElementRef )
//
// Purpose: get the minimum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the minimum Calibration value for this element
//
extern CFIndex IOHIDElement_GetCalibrationMin(IOHIDElementRef inElementRef);
//*************************************************************************
//
// IOHIDElement_SetCalibrationMin( inElementRef, inValue )
//
// Purpose: set the minimum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the minimum bounds for a calibrated value for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetCalibrationMin(IOHIDElementRef inElementRef, CFIndex inValue);
//*************************************************************************
//
// IOHIDElement_GetCalibrationMax( inElementRef )
//
// Purpose: get the maximum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
extern CFIndex IOHIDElement_GetCalibrationMax(IOHIDElementRef inElementRef);
//*************************************************************************
//
// IOHIDElement_SetCalibrationMax( inElementRef, inValue )
//
// Purpose: set the maximum bounds for a calibrated value for this element
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetCalibrationMax(IOHIDElementRef inElementRef, CFIndex inValue);
//*************************************************************************
//
// IOHIDElement_GetCalibrationSaturationMin( inElementRef )
//
// Purpose: get the mininum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
extern CFIndex IOHIDElement_GetCalibrationSaturationMin(IOHIDElementRef inElementRef);
//*************************************************************************
//
// IOHIDElement_SetCalibrationSaturationMin( inElementRef, inValue )
//
// Purpose: set the mininum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetCalibrationSaturationMin(IOHIDElementRef inElementRef, CFIndex inValue);
//*************************************************************************
//
// IOHIDElement_GetCalibrationSaturationMax( inElementRef )
//
// Purpose: get the maximum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
extern CFIndex IOHIDElement_GetCalibrationSaturationMax(IOHIDElementRef inElementRef);
//*************************************************************************
//
// IOHIDElement_SetCalibrationSaturationMax( inElementRef, inValue )
//
// Purpose: set the maximum tolerance to be used when calibrating a logical element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetCalibrationSaturationMax(IOHIDElementRef inElementRef, CFIndex inValue);
//*************************************************************************
//
// IOHIDElement_GetCalibrationDeadZoneMin( inElementRef )
//
// Purpose: get the minimum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
extern CFIndex IOHIDElement_GetCalibrationDeadZoneMin(IOHIDElementRef inElementRef);
//*************************************************************************
//
// IOHIDElement_SetCalibrationDeadZoneMin( inElementRef, inValue )
//
// Purpose: set the minimum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetCalibrationDeadZoneMin(IOHIDElementRef inElementRef, CFIndex inValue);
//*************************************************************************
//
// IOHIDElement_GetCalibrationDeadZoneMax( inElementRef )
//
// Purpose: get the maximum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: CFIndex - the maximum Calibration value for this element
//
extern CFIndex IOHIDElement_GetCalibrationDeadZoneMax(IOHIDElementRef inElementRef);
//*************************************************************************
//
// IOHIDElement_SetCalibrationDeadZoneMax( inElementRef, inValue )
//
// Purpose: set the maximum bounds near the midpoint of a logical value in which the value is ignored
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the maximum Calibration value for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetCalibrationDeadZoneMax(IOHIDElementRef inElementRef, CFIndex inValue);
//*************************************************************************
//
// IOHIDElement_GetCalibrationGranularity( inElementRef )
//
// Purpose: get the level of detail returned for a calibrated element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: double_t - the maximum Calibration value for this element
//
extern double_t IOHIDElement_GetCalibrationGranularity(IOHIDElementRef inElementRef);
//*************************************************************************
//
// IOHIDElement_SetCalibrationGranularity( inElementRef, inValue )
//
// Purpose: set the level of detail returned for a calibrated element value
//
// Inputs: inElementRef - the IOHIDElementRef for this element
// inValue - the the level of detail for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetCalibrationGranularity(IOHIDElementRef inElementRef, double_t inValue);
//*************************************************************************
//
// IOHIDElement_SetupCalibration( inElementRef )
//
// Purpose: set default values for the element calibration parameters
//
// Inputs: inElementRef - the IOHIDElementRef for this element
//
// Returns: nothing
//
extern void IOHIDElement_SetupCalibration(IOHIDElementRef inIOHIDElementRef);
extern Boolean IOHIDElement_GetLongProperty(IOHIDElementRef inElementRef, CFStringRef inKey, long *outValue);
extern void IOHIDElement_SetLongProperty(IOHIDElementRef inElementRef, CFStringRef inKey, long inValue);
//*****************************************************
#if PRAGMA_STRUCT_ALIGN
#pragma options align=reset
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
#pragma pack()
#endif
#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif
#ifdef __cplusplus
}
#endif
#endif // __IOHIDElement___ //

111
src/cocoa/IOHIDLib_.h Executable file
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@ -0,0 +1,111 @@
// File: IOHIDLib_.h
// Abstract: Single include file for all header files of IOHIDLib
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#ifndef __IOHIDLib___
#define __IOHIDLib___
//*****************************************************
#pragma mark - includes & imports
//-----------------------------------------------------
#include <IOKit/hid/IOHIDLib.h>
#include "IOHIDDevice_.h"
#include "IOHIDElement_.h"
#include "ImmrHIDUtilAddOn.h"
//*****************************************************
#if PRAGMA_ONCE
#pragma once
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if PRAGMA_IMPORT
#pragma import on
#endif
#if PRAGMA_STRUCT_ALIGN
#pragma options align=mac68k
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
#pragma pack(2)
#endif
//*****************************************************
#pragma mark - typedef's, struct's, enums, defines, etc.
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported globals
//-----------------------------------------------------
//*****************************************************
#pragma mark - exported function prototypes
//-----------------------------------------------------
//*****************************************************
#if PRAGMA_STRUCT_ALIGN
#pragma options align=reset
#elif PRAGMA_STRUCT_PACKPUSH
#pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
#pragma pack()
#endif
#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif
#ifdef __cplusplus
}
#endif
#endif // __IOHIDLib___

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src/cocoa/ImmrHIDUtilAddOn.c Executable file
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// File: ImmrHIDUtilAddOn.c
// Abstract: Glue code to convert IOHIDDeviceRef's to (FFB) io_object_t's
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#include <mach/mach.h>
#include <mach/mach_error.h>
#include "ImmrHIDUtilAddOn.h"
//---------------------------------------------------------------------------------
//
// AllocateHIDObjectFromIOHIDDeviceRef( )
//
// returns:
// NULL, or acceptable io_object_t
//
//---------------------------------------------------------------------------------
io_service_t AllocateHIDObjectFromIOHIDDeviceRef(IOHIDDeviceRef inIOHIDDeviceRef) {
io_service_t result = 0L;
if ( inIOHIDDeviceRef ) {
// 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.
CFMutableDictionaryRef matchingDict = IOServiceMatching(kIOHIDDeviceKey);
if ( matchingDict ) {
// 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.
CFTypeRef tCFTypeRef = IOHIDDeviceGetProperty( inIOHIDDeviceRef, CFSTR(kIOHIDLocationIDKey) );
if ( tCFTypeRef ) {
CFDictionaryAddValue(matchingDict, CFSTR(kIOHIDLocationIDKey), tCFTypeRef);
// CFRelease( tCFTypeRef ); // don't release objects that we "Get".
// 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
result = IOServiceGetMatchingService(kIOMasterPortDefault, matchingDict);
}
// Note: We're not leaking the matchingDict.
// One reference is consumed by IOServiceGetMatchingServices
}
}
return (result);
} // AllocateHIDObjectFromIOHIDDeviceRef
//---------------------------------------------------------------------------------
//
// FreeHIDObject( )
//
//---------------------------------------------------------------------------------
bool FreeHIDObject(io_service_t inHIDObject) {
kern_return_t kr;
kr = IOObjectRelease(inHIDObject);
return (kIOReturnSuccess == kr);
} // FreeHIDObject

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// File: ImmrHIDUtilAddOn.h
// Abstract: Glue code to convert IOHIDDeviceRef's to (FFB) io_object_t's
// Version: 2.0
//
// Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
// Inc. ("Apple") in consideration of your agreement to the following
// terms, and your use, installation, modification or redistribution of
// this Apple software constitutes acceptance of these terms. If you do
// not agree with these terms, please do not use, install, modify or
// redistribute this Apple software.
//
// In consideration of your agreement to abide by the following terms, and
// subject to these terms, Apple grants you a personal, non-exclusive
// license, under Apple's copyrights in this original Apple software (the
// "Apple Software"), to use, reproduce, modify and redistribute the Apple
// Software, with or without modifications, in source and/or binary forms;
// provided that if you redistribute the Apple Software in its entirety and
// without modifications, you must retain this notice and the following
// text and disclaimers in all such redistributions of the Apple Software.
// Neither the name, trademarks, service marks or logos of Apple Inc. may
// be used to endorse or promote products derived from the Apple Software
// without specific prior written permission from Apple. Except as
// expressly stated in this notice, no other rights or licenses, express or
// implied, are granted by Apple herein, including but not limited to any
// patent rights that may be infringed by your derivative works or by other
// works in which the Apple Software may be incorporated.
//
// The Apple Software is provided by Apple on an "AS IS" basis. APPLE
// MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
// THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
// OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
//
// IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
// MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
// AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
// STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (C) 2009 Apple Inc. All Rights Reserved.
//
//*****************************************************
#include <IOKit/IOKitLib.h>
#include <IOKit/hid/IOHIDLib.h>
extern io_service_t AllocateHIDObjectFromIOHIDDeviceRef(IOHIDDeviceRef inIOHIDDeviceRef);
extern bool FreeHIDObject(io_object_t inHIDObject);