src/mac/carbon/hid.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        hid.cpp
   3 // Purpose:     DARWIN HID layer for WX Implementation
   4 // Author:      Ryan Norton
   5 // Modified by:
   6 // Created:     11/11/2003
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Ryan Norton
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ===========================================================================
  13 // declarations
  14 // ===========================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21 #pragma implementation "hid.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 //DARWIN _ONLY_
  32 #ifdef __DARWIN__
  33
  34 #include "wx/mac/carbon/private/hid.h"
  35 #include "wx/string.h"
  36 #include "wx/log.h"
  37
  38
  39 // ---------------------------------------------------------------------------
  40 // assertion macros
  41 // ---------------------------------------------------------------------------
  42
  43 #define wxFORCECHECK_MSG(arg, msg)  \
  44 {\
  45         if (arg) \
  46         {\
  47                 wxLogSysError(wxString::Format(wxT("Message:%s\nHID: %s failed!"), wxT(msg), wxT(#arg)));\
  48                 return false;\
  49         }\
  50 }
  51 #define wxIOCHECK(arg, msg)  wxFORCECHECK_MSG(arg != kIOReturnSuccess, msg)
  52 #define wxKERNCHECK(arg, msg) wxFORCECHECK_MSG(arg != KERN_SUCCESS, msg)
  53 #define wxSCHECK(arg, msg) wxFORCECHECK_MSG(arg != S_OK, msg)
  54
  55 #ifdef __WXDEBUG___
  56 #       define wxVERIFY(arg)    wxASSERT(arg)
  57 #else
  58 #       define wxVERIFY(arg)    arg
  59 #endif
  60
  61 /*
  62 void CFShowTypeIDDescription(CFTypeRef pData)
  63 {
  64         if(!pData)
  65         {
  66                 wxASSERT(false);
  67                 return;
  68         }
  69
  70         wxMessageBox(
  71                 CFStringGetCStringPtr(
  72                         CFCopyTypeIDDescription(CFGetTypeID(pData)),CFStringGetSystemEncoding()
  73                                                          )
  74                                 );
  75 }
  76 */
  77
  78 // ============================================================================
  79 // implementation
  80 // ============================================================================
  81
  82 // ---------------------------------------------------------------------------
  83 // wxHIDDevice
  84 // ---------------------------------------------------------------------------
  85
  86 bool wxHIDDevice::Create (const int& nClass, const int& nType)
  87 {
  88         //Create the mach port
  89         wxIOCHECK(IOMasterPort(bootstrap_port, &m_pPort), "Could not create mach port");
  90
  91         //Dictionary that will hold first
  92         //the matching dictionary for determining which kind of devices we want,
  93         //then later some registry properties from an iterator (see below)
  94         CFMutableDictionaryRef pDictionary;
  95
  96         //Create a dictionary
  97         //The call to IOServiceMatching filters down the
  98         //the services we want to hid services (and also eats the
  99         //dictionary up for us (consumes one reference))
 100         wxVERIFY((pDictionary = IOServiceMatching(kIOHIDDeviceKey)) != NULL );
 101
 102         //Here we'll filter down the services to what we want
 103         if (nType != -1)
 104         {
 105                 CFNumberRef pType = CFNumberCreate(kCFAllocatorDefault,
 106                                                                         kCFNumberIntType, &nType);
 107                 CFDictionarySetValue(pDictionary, CFSTR(kIOHIDPrimaryUsageKey), pType);
 108                 CFRelease(pType);
 109         }
 110         if (nClass != -1)
 111         {
 112                 CFNumberRef pClass = CFNumberCreate(kCFAllocatorDefault,
 113                                                                         kCFNumberIntType, &nClass);
 114                 CFDictionarySetValue(pDictionary, CFSTR(kIOHIDPrimaryUsagePageKey), pClass);
 115                 CFRelease(pClass);
 116         }
 117
 118         //Now get the maching services
 119         io_iterator_t pIterator;
 120         wxIOCHECK(IOServiceGetMatchingServices(m_pPort, pDictionary, &pIterator), "No Matching HID Services");
 121         wxASSERT(pIterator != 0);
 122
 123         //Now we iterate through them
 124         io_object_t pObject;
 125         while ( (pObject = IOIteratorNext(pIterator)) != 0)
 126         {
 127                 wxVERIFY(IORegistryEntryCreateCFProperties(pObject, &pDictionary,
 128                                                                                         kCFAllocatorDefault, kNilOptions) == KERN_SUCCESS);
 129
 130                 //Just for sanity :)
 131                 wxASSERT(CFGetTypeID(CFDictionaryGetValue(pDictionary, CFSTR(kIOHIDProductKey))) == CFStringGetTypeID());
 132
 133                 //Get [product] name
 134                 m_szName = CFStringGetCStringPtr        (
 135                                                 (CFStringRef) CFDictionaryGetValue(pDictionary, CFSTR(kIOHIDProductKey)),
 136                                                 CFStringGetSystemEncoding()
 137                                                                                 );
 138
 139                 //
 140                 //Now the hard part - in order to scan things we need "cookies" -
 141                 //
 142                 wxCFArray CookieArray = CFDictionaryGetValue(pDictionary, CFSTR(kIOHIDElementKey));
 143                 BuildCookies(CookieArray);
 144                 if (m_ppQueue != NULL)
 145                         wxVERIFY((*m_ppQueue)->start(m_ppQueue) == S_OK);
 146
 147                 //Create the interface (good grief - long function names!)
 148                 SInt32 nScore;
 149                 IOCFPlugInInterface** ppPlugin;
 150                 wxIOCHECK(IOCreatePlugInInterfaceForService(pObject, kIOHIDDeviceUserClientTypeID,
 151                                                                                         kIOCFPlugInInterfaceID, &ppPlugin, &nScore), "");
 152
 153                 //Now, the final thing we can check before we fall back to asserts
 154                 //(because the dtor only checks if the device is ok, so if anything
 155                 //fails from now on the dtor will delete the device anyway, so we can't break from this).
 156
 157                 //Get the HID interface from the plugin to the mach port
 158                 wxSCHECK((*ppPlugin)->QueryInterface(ppPlugin,
 159                                                         CFUUIDGetUUIDBytes(kIOHIDDeviceInterfaceID), (void**) &m_ppDevice), "");
 160
 161                 //release the plugin
 162                 (*ppPlugin)->Release(ppPlugin);
 163
 164                 //open the HID interface...
 165                 wxVERIFY((*m_ppDevice)->open(m_ppDevice, 0) == S_OK);
 166
 167                 //cleanup
 168                 CFRelease(pDictionary);
 169                 IOObjectRelease(pObject);
 170                 break;
 171         }
 172         //iterator cleanup
 173         IOObjectRelease(pIterator);
 174
 175         return true;
 176 }//end Create()
 177
 178 void wxHIDDevice::AddCookie(CFTypeRef Data, const int& i)
 179 {
 180         CFNumberGetValue(
 181                                 (CFNumberRef) CFDictionaryGetValue      ( (CFDictionaryRef) Data
 182                                                                                 , CFSTR(kIOHIDElementCookieKey)
 183                                                                                 ),
 184                                 kCFNumberIntType,
 185                                 &m_pCookies[i]
 186                                 );
 187 }
 188
 189 void wxHIDDevice::AddCookieInQueue(CFTypeRef Data, const int& i)
 190 {
 191         AddCookie(Data, i);
 192         wxVERIFY((*m_ppQueue)->addElement(m_ppQueue, m_pCookies[i], 0) == S_OK);//3rd Param flags (none yet)
 193 }
 194
 195 void wxHIDDevice::InitCookies(const size_t& dwSize, bool bQueue)
 196 {
 197         m_pCookies = new IOHIDElementCookie[dwSize];
 198         if (bQueue)
 199         {
 200                 wxASSERT( m_ppQueue != NULL);
 201                 wxVERIFY(  (m_ppQueue = (*m_ppDevice)->allocQueue(m_ppDevice)) != NULL);
 202                 wxVERIFY(  (*m_ppQueue)->create(m_ppQueue, 0, 512) == S_OK); //Param 2, flags, none yet
 203         }
 204 }
 205
 206 bool wxHIDDevice::IsActive(const int& nIndex)
 207 {
 208         wxASSERT(m_pCookies[nIndex] != NULL);
 209         IOHIDEventStruct Event;
 210         (*m_ppDevice)->getElementValue(m_ppDevice, m_pCookies[nIndex], &Event);
 211         return !!Event.value;
 212 }
 213
 214
 215 wxHIDDevice::~wxHIDDevice()
 216 {
 217         if (m_ppDevice != NULL)
 218         {
 219                 (*m_ppDevice)->close(m_ppDevice);
 220                 (*m_ppDevice)->Release(m_ppDevice);
 221                 mach_port_deallocate(mach_task_self(), m_pPort);
 222         }
 223
 224         if (m_pCookies != NULL)
 225         {
 226                 delete [] m_pCookies;
 227                 if (m_ppQueue != NULL)
 228                 {
 229                         (*m_ppQueue)->stop(m_ppQueue);
 230                         (*m_ppQueue)->dispose(m_ppQueue);
 231                         (*m_ppQueue)->Release(m_ppQueue);
 232                 }
 233         }
 234 }
 235
 236 // ---------------------------------------------------------------------------
 237 // wxHIDKeyboard
 238 // ---------------------------------------------------------------------------
 239
 240 enum
 241 {
 242         WXK_RSHIFT = 400,
 243         WXK_RALT,
 244         WXK_RCONTROL,
 245         WXK_RMENU
 246
 247 };
 248
 249 bool wxHIDKeyboard::Create()
 250 {
 251         return wxHIDDevice::Create(kHIDPage_GenericDesktop, kHIDUsage_GD_Keyboard);
 252 }
 253
 254 void wxHIDKeyboard::BuildCookies(wxCFArray& Array)
 255 {
 256         Array = CFDictionaryGetValue((CFDictionaryRef)Array[0], CFSTR(kIOHIDElementKey));
 257         InitCookies(500);
 258         int i,
 259                 nUsage;
 260         for (i = 0; i < Array.Count(); ++i)
 261         {
 262                 CFNumberGetValue(
 263                         (CFNumberRef) CFDictionaryGetValue((CFDictionaryRef) Array[i], CFSTR(kIOHIDElementUsageKey)),
 264                                 kCFNumberLongType, &nUsage);
 265
 266                 if (nUsage >= kHIDUsage_KeyboardA && nUsage <= kHIDUsage_KeyboardZ)
 267                         AddCookie(Array[i], 'A' + (nUsage - kHIDUsage_KeyboardA) );
 268                 else if (nUsage >= kHIDUsage_Keyboard1 && nUsage <= kHIDUsage_Keyboard9)
 269                         AddCookie(Array[i], '1' + (nUsage - kHIDUsage_Keyboard1) );
 270                 else if (nUsage >= kHIDUsage_KeyboardF1 && nUsage <= kHIDUsage_KeyboardF12)
 271                         AddCookie(Array[i], WXK_F1 + (nUsage - kHIDUsage_KeyboardF1) );
 272                 else if (nUsage >= kHIDUsage_KeyboardF13 && nUsage <= kHIDUsage_KeyboardF24)
 273                         AddCookie(Array[i], WXK_F13 + (nUsage - kHIDUsage_KeyboardF13) );
 274                 else if (nUsage >= kHIDUsage_Keypad1 && nUsage <= kHIDUsage_Keypad9)
 275                         AddCookie(Array[i], WXK_NUMPAD1 + (nUsage - kHIDUsage_Keypad1) );
 276                 else switch (nUsage)
 277                 {
 278                         //0's (wx & ascii go 0-9, but HID goes 1-0)
 279                         case kHIDUsage_Keyboard0:
 280                                 AddCookie(Array[i],'0');
 281                                 break;
 282                         case kHIDUsage_Keypad0:
 283                                 AddCookie(Array[i],WXK_NUMPAD0);
 284                                 break;
 285
 286                         //Basic
 287                         case kHIDUsage_KeyboardReturnOrEnter:
 288                                 AddCookie(Array[i], WXK_RETURN);
 289                                 break;
 290                         case kHIDUsage_KeyboardEscape:
 291                                 AddCookie(Array[i], WXK_ESCAPE);
 292                                 break;
 293                         case kHIDUsage_KeyboardDeleteOrBackspace:
 294                                 AddCookie(Array[i], WXK_BACK);
 295                                 break;
 296                         case kHIDUsage_KeyboardTab:
 297                                 AddCookie(Array[i], WXK_TAB);
 298                                 break;
 299                         case kHIDUsage_KeyboardSpacebar:
 300                                 AddCookie(Array[i], WXK_SPACE);
 301                                 break;
 302                         case kHIDUsage_KeyboardPageUp:
 303                                 AddCookie(Array[i], WXK_PRIOR);
 304                                 break;
 305                         case kHIDUsage_KeyboardEnd:
 306                                 AddCookie(Array[i], WXK_END);
 307                                 break;
 308                         case kHIDUsage_KeyboardPageDown:
 309                                 AddCookie(Array[i], WXK_NEXT);
 310                                 break;
 311                         case kHIDUsage_KeyboardRightArrow:
 312                                 AddCookie(Array[i], WXK_RIGHT);
 313                                 break;
 314                         case kHIDUsage_KeyboardLeftArrow:
 315                                 AddCookie(Array[i], WXK_LEFT);
 316                                 break;
 317                         case kHIDUsage_KeyboardDownArrow:
 318                                 AddCookie(Array[i], WXK_DOWN);
 319                                 break;
 320                         case kHIDUsage_KeyboardUpArrow:
 321                                 AddCookie(Array[i], WXK_UP);
 322                                 break;
 323
 324                         //LEDS
 325                         case kHIDUsage_KeyboardCapsLock:
 326                                 AddCookie(Array[i],WXK_CAPITAL);
 327                                 break;
 328                         case kHIDUsage_KeypadNumLock:
 329                                 AddCookie(Array[i],WXK_NUMLOCK);
 330                                 break;
 331                         case kHIDUsage_KeyboardScrollLock:
 332                                 AddCookie(Array[i],WXK_SCROLL);
 333                                 break;
 334
 335                         //Menu keys, Shift, other specials
 336                         case kHIDUsage_KeyboardLeftControl:
 337                                 AddCookie(Array[i],WXK_CONTROL);
 338                                 break;
 339                         case kHIDUsage_KeyboardLeftShift:
 340                                 AddCookie(Array[i],WXK_SHIFT);
 341                                 break;
 342                         case kHIDUsage_KeyboardLeftAlt:
 343                                 AddCookie(Array[i],WXK_ALT);
 344                                 break;
 345                         case kHIDUsage_KeyboardLeftGUI:
 346                                 AddCookie(Array[i],WXK_MENU);
 347                                 break;
 348                         case kHIDUsage_KeyboardRightControl:
 349                                 AddCookie(Array[i],WXK_RCONTROL);
 350                                 break;
 351                         case kHIDUsage_KeyboardRightShift:
 352                                 AddCookie(Array[i],WXK_RSHIFT);
 353                                 break;
 354                         case kHIDUsage_KeyboardRightAlt:
 355                                 AddCookie(Array[i],WXK_RALT);
 356                                 break;
 357                         case kHIDUsage_KeyboardRightGUI:
 358                                 AddCookie(Array[i],WXK_RMENU);
 359                                 break;
 360
 361                         //Default
 362                         default:
 363                         //not in wx keycodes - do nothing....
 364                         break;
 365                 }
 366         }
 367 }//end buildcookies
 368
 369 #endif //__DARWIN__