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xserver/hw/darwin/iokit/xfIOKit.c

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/**************************************************************
*
* 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) 2001-2004 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.
*/
/* $XdotOrg: xc/programs/Xserver/hw/darwin/iokit/xfIOKit.c,v 1.4 2005/04/20 12:25:19 daniels Exp $ */
/* $XFree86: xc/programs/Xserver/hw/darwin/iokit/xfIOKit.c,v 1.2 2003/10/16 23:50:09 torrey Exp $ */
#include <X11/X.h>
#include <X11/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 <sys/types.h>
#include <sys/time.h>
#include <unistd.h>
#include <fcntl.h>
#include <pthread.h>
#include <mach/mach_interface.h>
#define NO_CFPLUGIN
#include <IOKit/IOKitLib.h>
#include <IOKit/hidsystem/IOHIDShared.h>
#include <IOKit/graphics/IOGraphicsLib.h>
#include <drivers/event_status_driver.h>
// 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.componentCount == 1)
{
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);
}
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