/************************************************************** * * IOKit support for the Darwin X Server * * HISTORY: * Original port to Mac OS X Server by John Carmack * Port to Darwin 1.0 by Dave Zarzycki * Significantly rewritten for XFree86 4.0.1 by Torrey Lyons * **************************************************************/ /* * Copyright (c) 2001-2002 Torrey T. Lyons. All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name(s) of the above copyright * holders shall not be used in advertising or otherwise to promote the sale, * use or other dealings in this Software without prior written authorization. */ /* $XFree86: xc/programs/Xserver/hw/darwin/iokit/xfIOKit.c,v 1.2 2003/10/16 23:50:09 torrey Exp $ */ #include "X.h" #include "Xproto.h" #include "os.h" #include "servermd.h" #include "inputstr.h" #include "scrnintstr.h" #include "mi.h" #include "mibstore.h" #include "mipointer.h" #include "micmap.h" #include "shadow.h" #include #include #include #include #include #include #define NO_CFPLUGIN #include #include #include #include // Define this to work around bugs in the display drivers for // older PowerBook G3's. If the X server starts without this // #define, you don't need it. #undef OLD_POWERBOOK_G3 #include "darwin.h" #include "xfIOKit.h" // Globals int xfIOKitScreenIndex = 0; io_connect_t xfIOKitInputConnect = 0; static pthread_t inputThread; static EvGlobals * evg; static mach_port_t masterPort; static mach_port_t notificationPort; static IONotificationPortRef NotificationPortRef; static mach_port_t pmNotificationPort; static io_iterator_t fbIter; /* * XFIOKitStoreColors * This is a callback from X to change the hardware colormap * when using PsuedoColor. */ static void XFIOKitStoreColors( ColormapPtr pmap, int numEntries, xColorItem *pdefs) { kern_return_t kr; int i; IOColorEntry *newColors; ScreenPtr pScreen = pmap->pScreen; XFIOKitScreenPtr iokitScreen = XFIOKIT_SCREEN_PRIV(pScreen); assert( newColors = (IOColorEntry *) xalloc( numEntries*sizeof(IOColorEntry) )); // Convert xColorItem values to IOColorEntry // assume the colormap is PsuedoColor // as we do not support DirectColor for (i = 0; i < numEntries; i++) { newColors[i].index = pdefs[i].pixel; newColors[i].red = pdefs[i].red; newColors[i].green = pdefs[i].green; newColors[i].blue = pdefs[i].blue; } kr = IOFBSetCLUT( iokitScreen->fbService, 0, numEntries, kSetCLUTByValue, newColors ); kern_assert( kr ); xfree( newColors ); } /* * DarwinModeBell * FIXME */ void DarwinModeBell( int loud, DeviceIntPtr pDevice, pointer ctrl, int fbclass) { } /* * DarwinModeGiveUp * Closes the connections to IOKit services */ void DarwinModeGiveUp( void ) { int i; // we must close the HID System first // because it is a client of the framebuffer NXCloseEventStatus( darwinParamConnect ); IOServiceClose( xfIOKitInputConnect ); for (i = 0; i < screenInfo.numScreens; i++) { XFIOKitScreenPtr iokitScreen = XFIOKIT_SCREEN_PRIV(screenInfo.screens[i]); IOServiceClose( iokitScreen->fbService ); } } /* * ClearEvent * Clear an event from the HID System event queue */ static void ClearEvent(NXEvent * ep) { static NXEvent nullEvent = {NX_NULLEVENT, {0, 0 }, 0, -1, 0 }; *ep = nullEvent; ep->data.compound.subType = ep->data.compound.misc.L[0] = ep->data.compound.misc.L[1] = 0; } /* * XFIOKitHIDThread * Read the HID System event queue, translate it to an X event, * and queue it for processing. */ static void *XFIOKitHIDThread(void *unused) { for (;;) { NXEQElement *oldHead; mach_msg_return_t kr; mach_msg_empty_rcv_t msg; kr = mach_msg((mach_msg_header_t*) &msg, MACH_RCV_MSG, 0, sizeof(msg), notificationPort, 0, MACH_PORT_NULL); kern_assert(kr); while (evg->LLEHead != evg->LLETail) { NXEvent ev; xEvent xe; // Extract the next event from the kernel queue oldHead = (NXEQElement*)&evg->lleq[evg->LLEHead]; ev_lock(&oldHead->sema); ev = oldHead->event; ClearEvent(&oldHead->event); evg->LLEHead = oldHead->next; ev_unlock(&oldHead->sema); memset(&xe, 0, sizeof(xe)); // These fields should be filled in for every event xe.u.keyButtonPointer.rootX = ev.location.x; xe.u.keyButtonPointer.rootY = ev.location.y; xe.u.keyButtonPointer.time = GetTimeInMillis(); switch( ev.type ) { case NX_MOUSEMOVED: xe.u.u.type = MotionNotify; break; case NX_LMOUSEDOWN: xe.u.u.type = ButtonPress; xe.u.u.detail = 1; break; case NX_LMOUSEUP: xe.u.u.type = ButtonRelease; xe.u.u.detail = 1; break; // A newer kernel generates multi-button events with // NX_SYSDEFINED. Button 2 isn't handled correctly by // older kernels anyway. Just let NX_SYSDEFINED events // handle these. #if 0 case NX_RMOUSEDOWN: xe.u.u.type = ButtonPress; xe.u.u.detail = 2; break; case NX_RMOUSEUP: xe.u.u.type = ButtonRelease; xe.u.u.detail = 2; break; #endif case NX_KEYDOWN: xe.u.u.type = KeyPress; xe.u.u.detail = ev.data.key.keyCode; break; case NX_KEYUP: xe.u.u.type = KeyRelease; xe.u.u.detail = ev.data.key.keyCode; break; case NX_FLAGSCHANGED: xe.u.u.type = kXDarwinUpdateModifiers; xe.u.clientMessage.u.l.longs0 = ev.flags; break; case NX_SYSDEFINED: if (ev.data.compound.subType == 7) { xe.u.u.type = kXDarwinUpdateButtons; xe.u.clientMessage.u.l.longs0 = ev.data.compound.misc.L[0]; xe.u.clientMessage.u.l.longs1 = ev.data.compound.misc.L[1]; } else { continue; } break; case NX_SCROLLWHEELMOVED: xe.u.u.type = kXDarwinScrollWheel; xe.u.clientMessage.u.s.shorts0 = ev.data.scrollWheel.deltaAxis1; break; default: continue; } DarwinEQEnqueue(&xe); } } return NULL; } /* * XFIOKitPMThread * Handle power state notifications */ static void *XFIOKitPMThread(void *arg) { ScreenPtr pScreen = (ScreenPtr)arg; XFIOKitScreenPtr iokitScreen = XFIOKIT_SCREEN_PRIV(pScreen); for (;;) { mach_msg_return_t kr; mach_msg_empty_rcv_t msg; kr = mach_msg((mach_msg_header_t*) &msg, MACH_RCV_MSG, 0, sizeof(msg), pmNotificationPort, 0, MACH_PORT_NULL); kern_assert(kr); // display is powering down if (msg.header.msgh_id == 0) { IOFBAcknowledgePM( iokitScreen->fbService ); xf86SetRootClip(pScreen, FALSE); } // display just woke up else if (msg.header.msgh_id == 1) { xf86SetRootClip(pScreen, TRUE); } } return NULL; } /* * SetupFBandHID * Setup an IOFramebuffer service and connect the HID system to it. */ static Bool SetupFBandHID( int index, DarwinFramebufferPtr dfb, XFIOKitScreenPtr iokitScreen) { kern_return_t kr; io_service_t service; io_connect_t fbService; vm_address_t vram; vm_size_t shmemSize; int i; UInt32 numModes; IODisplayModeInformation modeInfo; IODisplayModeID displayMode, *allModes; IOIndex displayDepth; IOFramebufferInformation fbInfo; IOPixelInformation pixelInfo; StdFBShmem_t *cshmem; // find and open the IOFrameBuffer service service = IOIteratorNext(fbIter); if (service == 0) return FALSE; kr = IOServiceOpen( service, mach_task_self(), kIOFBServerConnectType, &iokitScreen->fbService ); IOObjectRelease( service ); if (kr != KERN_SUCCESS) { ErrorF("Failed to connect as window server to screen %i.\n", index); return FALSE; } fbService = iokitScreen->fbService; // create the slice of shared memory containing cursor state data kr = IOFBCreateSharedCursor( fbService, kIOFBCurrentShmemVersion, 32, 32 ); if (kr != KERN_SUCCESS) return FALSE; // Register for power management events for the framebuffer's device kr = IOCreateReceivePort(kOSNotificationMessageID, &pmNotificationPort); kern_assert(kr); kr = IOConnectSetNotificationPort( fbService, 0, pmNotificationPort, 0 ); if (kr != KERN_SUCCESS) { ErrorF("Power management registration failed.\n"); } // SET THE SCREEN PARAMETERS // get the current screen resolution, refresh rate and depth kr = IOFBGetCurrentDisplayModeAndDepth( fbService, &displayMode, &displayDepth ); if (kr != KERN_SUCCESS) return FALSE; // use the current screen resolution if the user // only wants to change the refresh rate if (darwinDesiredRefresh != -1 && darwinDesiredWidth == 0) { kr = IOFBGetDisplayModeInformation( fbService, displayMode, &modeInfo ); if (kr != KERN_SUCCESS) return FALSE; darwinDesiredWidth = modeInfo.nominalWidth; darwinDesiredHeight = modeInfo.nominalHeight; } // use the current resolution and refresh rate // if the user doesn't have a preference if (darwinDesiredWidth == 0) { // change the pixel depth if desired if (darwinDesiredDepth != -1) { kr = IOFBGetDisplayModeInformation( fbService, displayMode, &modeInfo ); if (kr != KERN_SUCCESS) return FALSE; if (modeInfo.maxDepthIndex < darwinDesiredDepth) { ErrorF("Discarding screen %i:\n", index); ErrorF("Current screen resolution does not support desired pixel depth.\n"); return FALSE; } displayDepth = darwinDesiredDepth; kr = IOFBSetDisplayModeAndDepth( fbService, displayMode, displayDepth ); if (kr != KERN_SUCCESS) return FALSE; } // look for display mode with correct resolution and refresh rate } else { // get an array of all supported display modes kr = IOFBGetDisplayModeCount( fbService, &numModes ); if (kr != KERN_SUCCESS) return FALSE; assert(allModes = (IODisplayModeID *) xalloc( numModes * sizeof(IODisplayModeID) )); kr = IOFBGetDisplayModes( fbService, numModes, allModes ); if (kr != KERN_SUCCESS) return FALSE; for (i = 0; i < numModes; i++) { kr = IOFBGetDisplayModeInformation( fbService, allModes[i], &modeInfo ); if (kr != KERN_SUCCESS) return FALSE; if (modeInfo.flags & kDisplayModeValidFlag && modeInfo.nominalWidth == darwinDesiredWidth && modeInfo.nominalHeight == darwinDesiredHeight) { if (darwinDesiredDepth == -1) darwinDesiredDepth = modeInfo.maxDepthIndex; if (modeInfo.maxDepthIndex < darwinDesiredDepth) { ErrorF("Discarding screen %i:\n", index); ErrorF("Desired screen resolution does not support desired pixel depth.\n"); return FALSE; } if ((darwinDesiredRefresh == -1 || (darwinDesiredRefresh << 16) == modeInfo.refreshRate)) { displayMode = allModes[i]; displayDepth = darwinDesiredDepth; kr = IOFBSetDisplayModeAndDepth(fbService, displayMode, displayDepth); if (kr != KERN_SUCCESS) return FALSE; break; } } } xfree( allModes ); if (i >= numModes) { ErrorF("Discarding screen %i:\n", index); ErrorF("Desired screen resolution or refresh rate is not supported.\n"); return FALSE; } } kr = IOFBGetPixelInformation( fbService, displayMode, displayDepth, kIOFBSystemAperture, &pixelInfo ); if (kr != KERN_SUCCESS) return FALSE; #ifdef __i386__ /* x86 in 8bit mode currently needs fixed color map... */ if( pixelInfo.bitsPerComponent == 8 ) { pixelInfo.pixelType = kIOFixedCLUTPixels; } #endif #ifdef OLD_POWERBOOK_G3 if (pixelInfo.pixelType == kIOCLUTPixels) pixelInfo.pixelType = kIOFixedCLUTPixels; #endif kr = IOFBGetFramebufferInformationForAperture( fbService, kIOFBSystemAperture, &fbInfo ); if (kr != KERN_SUCCESS) return FALSE; // FIXME: 1x1 IOFramebuffers are sometimes used to indicate video // outputs without a monitor connected to them. Since IOKit Xinerama // does not really work, this often causes problems on PowerBooks. // For now we explicitly check and ignore these screens. if (fbInfo.activeWidth <= 1 || fbInfo.activeHeight <= 1) { ErrorF("Discarding screen %i:\n", index); ErrorF("Invalid width or height.\n"); return FALSE; } kr = IOConnectMapMemory( fbService, kIOFBCursorMemory, mach_task_self(), (vm_address_t *) &cshmem, &shmemSize, kIOMapAnywhere ); if (kr != KERN_SUCCESS) return FALSE; iokitScreen->cursorShmem = cshmem; kr = IOConnectMapMemory( fbService, kIOFBSystemAperture, mach_task_self(), &vram, &shmemSize, kIOMapAnywhere ); if (kr != KERN_SUCCESS) return FALSE; iokitScreen->framebuffer = (void*)vram; dfb->x = cshmem->screenBounds.minx; dfb->y = cshmem->screenBounds.miny; dfb->width = fbInfo.activeWidth; dfb->height = fbInfo.activeHeight; dfb->pitch = fbInfo.bytesPerRow; dfb->bitsPerPixel = fbInfo.bitsPerPixel; dfb->colorBitsPerPixel = pixelInfo.componentCount * pixelInfo.bitsPerComponent; dfb->bitsPerComponent = pixelInfo.bitsPerComponent; // allocate shadow framebuffer iokitScreen->shadowPtr = xalloc(dfb->pitch * dfb->height); dfb->framebuffer = iokitScreen->shadowPtr; // Note: Darwin kIORGBDirectPixels = X TrueColor, not DirectColor if (pixelInfo.pixelType == kIORGBDirectPixels) { dfb->colorType = TrueColor; } else if (pixelInfo.pixelType == kIOCLUTPixels) { dfb->colorType = PseudoColor; } else if (pixelInfo.pixelType == kIOFixedCLUTPixels) { dfb->colorType = StaticColor; } // Inform the HID system that the framebuffer is also connected to it. kr = IOConnectAddClient( xfIOKitInputConnect, fbService ); kern_assert( kr ); // We have to have added at least one screen // before we can enable the cursor. kr = IOHIDSetCursorEnable(xfIOKitInputConnect, TRUE); kern_assert( kr ); return TRUE; } /* * DarwinModeAddScreen * IOKit specific initialization for each screen. */ Bool DarwinModeAddScreen( int index, ScreenPtr pScreen) { DarwinFramebufferPtr dfb = SCREEN_PRIV(pScreen); XFIOKitScreenPtr iokitScreen; // allocate space for private per screen storage iokitScreen = xalloc(sizeof(XFIOKitScreenRec)); XFIOKIT_SCREEN_PRIV(pScreen) = iokitScreen; // setup hardware framebuffer iokitScreen->fbService = 0; if (! SetupFBandHID(index, dfb, iokitScreen)) { if (iokitScreen->fbService) { IOServiceClose(iokitScreen->fbService); } return FALSE; } return TRUE; } /* * XFIOKitShadowUpdate * Update the damaged regions of the shadow framebuffer on the screen. */ static void XFIOKitShadowUpdate(ScreenPtr pScreen, shadowBufPtr pBuf) { DarwinFramebufferPtr dfb = SCREEN_PRIV(pScreen); XFIOKitScreenPtr iokitScreen = XFIOKIT_SCREEN_PRIV(pScreen); RegionPtr damage = &pBuf->damage; int numBox = REGION_NUM_RECTS(damage); BoxPtr pBox = REGION_RECTS(damage); int pitch = dfb->pitch; int bpp = dfb->bitsPerPixel/8; // Loop through all the damaged boxes while (numBox--) { int width, height, offset; unsigned char *src, *dst; width = (pBox->x2 - pBox->x1) * bpp; height = pBox->y2 - pBox->y1; offset = (pBox->y1 * pitch) + (pBox->x1 * bpp); src = iokitScreen->shadowPtr + offset; dst = iokitScreen->framebuffer + offset; while (height--) { memcpy(dst, src, width); dst += pitch; src += pitch; } // Get the next box pBox++; } } /* * DarwinModeSetupScreen * Finalize IOKit specific initialization of each screen. */ Bool DarwinModeSetupScreen( int index, ScreenPtr pScreen) { DarwinFramebufferPtr dfb = SCREEN_PRIV(pScreen); pthread_t pmThread; // initalize cursor support if (! XFIOKitInitCursor(pScreen)) { return FALSE; } // initialize shadow framebuffer support if (! shadowInit(pScreen, XFIOKitShadowUpdate, NULL)) { ErrorF("Failed to initalize shadow framebuffer for screen %i.\n", index); return FALSE; } // initialize colormap handling as needed if (dfb->colorType == PseudoColor) { pScreen->StoreColors = XFIOKitStoreColors; } // initialize power manager handling pthread_create( &pmThread, NULL, XFIOKitPMThread, (void *) pScreen ); return TRUE; } /* * DarwinModeInitOutput * One-time initialization of IOKit output support. */ void DarwinModeInitOutput( int argc, char **argv) { static unsigned long generation = 0; kern_return_t kr; io_iterator_t iter; io_service_t service; vm_address_t shmem; vm_size_t shmemSize; ErrorF("Display mode: IOKit\n"); // Allocate private storage for each screen's IOKit specific info if (generation != serverGeneration) { xfIOKitScreenIndex = AllocateScreenPrivateIndex(); generation = serverGeneration; } kr = IOMasterPort(bootstrap_port, &masterPort); kern_assert( kr ); // Find and open the HID System Service // Do this now to be sure the Mac OS X window server is not running. kr = IOServiceGetMatchingServices( masterPort, IOServiceMatching( kIOHIDSystemClass ), &iter ); kern_assert( kr ); assert( service = IOIteratorNext( iter ) ); kr = IOServiceOpen( service, mach_task_self(), kIOHIDServerConnectType, &xfIOKitInputConnect ); if (kr != KERN_SUCCESS) { ErrorF("Failed to connect to the HID System as the window server!\n"); #ifdef DARWIN_WITH_QUARTZ FatalError("Quit the Mac OS X window server or use the -quartz option.\n"); #else FatalError("Make sure you have quit the Mac OS X window server.\n"); #endif } IOObjectRelease( service ); IOObjectRelease( iter ); // Setup the event queue in memory shared by the kernel and X server kr = IOHIDCreateSharedMemory( xfIOKitInputConnect, kIOHIDCurrentShmemVersion ); kern_assert( kr ); kr = IOConnectMapMemory( xfIOKitInputConnect, kIOHIDGlobalMemory, mach_task_self(), &shmem, &shmemSize, kIOMapAnywhere ); kern_assert( kr ); evg = (EvGlobals *)(shmem + ((EvOffsets *)shmem)->evGlobalsOffset); assert(sizeof(EvGlobals) == evg->structSize); NotificationPortRef = IONotificationPortCreate( masterPort ); notificationPort = IONotificationPortGetMachPort(NotificationPortRef); kr = IOConnectSetNotificationPort( xfIOKitInputConnect, kIOHIDEventNotification, notificationPort, 0 ); kern_assert( kr ); evg->movedMask |= NX_MOUSEMOVEDMASK; // find number of framebuffers kr = IOServiceGetMatchingServices( masterPort, IOServiceMatching( IOFRAMEBUFFER_CONFORMSTO ), &fbIter ); kern_assert( kr ); darwinScreensFound = 0; while ((service = IOIteratorNext(fbIter))) { IOObjectRelease( service ); darwinScreensFound++; } IOIteratorReset(fbIter); } /* * DarwinModeInitInput * One-time initialization of IOKit input support. */ void DarwinModeInitInput( int argc, char **argv) { kern_return_t kr; int fd[2]; kr = IOHIDSetEventsEnable(xfIOKitInputConnect, TRUE); kern_assert( kr ); // Start event passing thread assert( pipe(fd) == 0 ); darwinEventReadFD = fd[0]; darwinEventWriteFD = fd[1]; fcntl(darwinEventReadFD, F_SETFL, O_NONBLOCK); pthread_create(&inputThread, NULL, XFIOKitHIDThread, NULL); } /* * DarwinModeProcessEvent * Process IOKit specific events. */ void DarwinModeProcessEvent( xEvent *xe) { // No mode specific events ErrorF("Unknown X event caught: %d\n", xe->u.u.type); }