/*-----------------------------------------------------------------------------*
* This routine queues an SRB to reset the SCSI Bus
*
*-----------------------------------------------------------------------------*/
void Sym8xxSCSIController::resetCommand( IOSCSIParallelCommand *scsiCommand )
{
SRB * srb;
IOMemoryDescriptor * iomd;
// printf( "SCSI(Symbios8xx): resetCommand\n\r" );
srb = (SRB *) scsiCommand->getCommandData();
bzero( srb, sizeof(SRB) );
iomd = SCSI_IOMDs[ SCSI_RESET_IOMD ]; // special "target" for reset
srb->srbIOMD = iomd; // save in SRB for later ->complete() call
// ::initWithAddress() causes any previous contents of IOMD to be ::complete()'d
if ( iomd->initWithAddress( srb, sizeof( SRB ), kIODirectionOutIn ) )
{
iomd->prepare();
srb->srbPhys = (SRB *) iomd->getPhysicalAddress();
}
else
{
// this should never happen, as we have allocated enough
// IOMDs for MAX_SCSI_TARGETS plus 2 extra for reset and
// a "fudge factor" just in case.
panic( "Sym8xxSCSIController::resetCommand - IOMemoryDescriptor reinitialization failed" );
}
srb->scsiCommand = scsiCommand;
Sym8xxSCSIBusReset( srb );
}
/**
* Start this service.
*/
bool org_virtualbox_VBoxGuest::start(IOService *pProvider)
{
if (!IOService::start(pProvider))
return false;
/* Low level initialization should be performed only once */
if (!ASMAtomicCmpXchgBool(&g_fInstantiated, true, false))
{
IOService::stop(pProvider);
return false;
}
m_pIOPCIDevice = OSDynamicCast(IOPCIDevice, pProvider);
if (m_pIOPCIDevice)
{
if (isVmmDev(m_pIOPCIDevice))
{
/* Enable memory response from VMM device */
m_pIOPCIDevice->setMemoryEnable(true);
m_pIOPCIDevice->setIOEnable(true);
IOMemoryDescriptor *pMem = m_pIOPCIDevice->getDeviceMemoryWithIndex(0);
if (pMem)
{
IOPhysicalAddress IOPortBasePhys = pMem->getPhysicalAddress();
/* Check that returned value is from I/O port range (at least it is 16-bit lenght) */
if((IOPortBasePhys >> 16) == 0)
{
RTIOPORT IOPortBase = (RTIOPORT)IOPortBasePhys;
void *pvMMIOBase = NULL;
uint32_t cbMMIO = 0;
m_pMap = m_pIOPCIDevice->mapDeviceMemoryWithIndex(1);
if (m_pMap)
{
pvMMIOBase = (void *)m_pMap->getVirtualAddress();
cbMMIO = m_pMap->getLength();
}
int rc = VBoxGuestInitDevExt(&g_DevExt,
IOPortBase,
pvMMIOBase,
cbMMIO,
#if ARCH_BITS == 64
VBOXOSTYPE_MacOS_x64,
#else
VBOXOSTYPE_MacOS,
#endif
0);
if (RT_SUCCESS(rc))
{
rc = VbgdDarwinCharDevInit();
if (rc == KMOD_RETURN_SUCCESS)
{
if (setupVmmDevInterrupts(pProvider))
{
/* register the service. */
registerService();
LogRel(("VBoxGuest: IOService started\n"));
return true;
}
LogRel(("VBoxGuest: Failed to set up interrupts\n"));
VbgdDarwinCharDevRemove();
}
else
LogRel(("VBoxGuest: Failed to initialize character device (rc=%d).\n", rc));
VBoxGuestDeleteDevExt(&g_DevExt);
}
else
LogRel(("VBoxGuest: Failed to initialize common code (rc=%d).\n", rc));
if (m_pMap)
{
m_pMap->release();
m_pMap = NULL;
}
}
}
else
LogRel(("VBoxGuest: The device missing is the I/O port range (#0).\n"));
}
else
/*-----------------------------------------------------------------------------*
*
*-----------------------------------------------------------------------------*/
void Sym8xxSCSIController::executeCommand( IOSCSIParallelCommand *scsiCommand )
{
SRB *srb = NULL;
SCSICDBInfo scsiCDB;
SCSITargetLun targetLun;
Nexus *nexus;
Nexus *nexusPhys;
UInt32 len;
bool isWrite;
IOMemoryDescriptor * iomd;
srb = (SRB *) scsiCommand->getCommandData();
bzero( srb, sizeof(SRB) );
srb->scsiCommand = scsiCommand;
scsiCommand->getCDB( &scsiCDB );
scsiCommand->getTargetLun( &targetLun );
srb->target = targetLun.target;
srb->lun = targetLun.lun;
srb->srbCDBFlags = scsiCDB.cdbFlags;
// 1 IOMD per target, since only 1 transaction possible with current architecture
iomd = SCSI_IOMDs[(int) srb->target ];
srb->srbIOMD = iomd;
// ::initWithAddress() causes any previous IOMDs to be ::complete()'d
if ( iomd->initWithAddress( srb, sizeof( SRB ), kIODirectionOutIn ) )
{
iomd->prepare();
srb->srbPhys = (SRB *) iomd->getPhysicalAddress();
}
else
{
// this should never happen, as we have allocated enough
// IOMDs for MAX_SCSI_TARGETS plus 1 extra for reset
panic( "Sym8xxSCSIController::executeCommand - IOMemoryDescriptor reinitialization failed" );
}
/*
* Setup the Nexus struct. This part of the SRB is read/written both by the
* script and the driver.
*/
nexus = &srb->nexus;
nexusPhys = &srb->srbPhys->nexus;
nexus->targetParms.target = srb->target;
// printf( "SCSI(Symbios8xx): executeCommand: T/L = %d:%d Cmd = %08x CmdType = %d\n\r",
// targetLun.target, targetLun.lun, (int)scsiCommand, scsiCommand->getCmdType() );
switch ( scsiCommand->getCmdType() )
{
case kSCSICommandAbort:
case kSCSICommandAbortAll:
case kSCSICommandDeviceReset:
Sym8xxAbortCommand( scsiCommand );
return;
default:
;
}
/*
* Set client data buffer pointers in the SRB
*/
scsiCommand->getPointers( &srb->xferDesc, &srb->xferCount, &isWrite );
srb->directionMask = (isWrite) ? 0x00000000 :0x01000000;
nexus->cdb.ppData = OSSwapHostToLittleInt32((UInt32)&nexusPhys->cdbData);
len = scsiCDB.cdbLength;
nexus->cdb.length = OSSwapHostToLittleInt32( len );
// implicit copying of arrays is not desireable. explicitly spell out what is being copied
// [rdar://problem/4092008]
// nexus->cdbData = scsiCDB.cdb;
bcopy( &scsiCDB.cdb, &nexus->cdbData, sizeof( nexus->cdbData ) );
Sym8xxCalcMsgs( scsiCommand );
/*
* Setup initial data transfer list (SGList)
*/
nexus->ppSGList = (SGEntry *)OSSwapHostToLittleInt32((UInt32)&nexusPhys->sgListData[2]);
Sym8xxUpdateSGList( srb );
Sym8xxStartSRB( srb );
}
bool AppleSamplePCI::start( IOService * provider )
{
IOMemoryDescriptor * mem;
IOMemoryMap * map;
IOLog("AppleSamplePCI::start\n");
if( !super::start( provider ))
return( false );
/*
* Our provider class is specified in the driver property table
* as IOPCIDevice, so the provider must be of that class.
* The assert is just to make absolutely sure for debugging.
*/
assert( OSDynamicCast( IOPCIDevice, provider ));
fPCIDevice = (IOPCIDevice *) provider;
/*
* Enable memory response from the card
*/
fPCIDevice->setMemoryEnable( true );
/*
* Log some info about the device
*/
/* print all the device's memory ranges */
for( UInt32 index = 0;
index < fPCIDevice->getDeviceMemoryCount();
index++ ) {
mem = fPCIDevice->getDeviceMemoryWithIndex( index );
assert( mem );
IOLog("Range[%ld] %08lx:%08lx\n", index,
mem->getPhysicalAddress(), mem->getLength());
}
/* look up a range based on its config space base address register */
mem = fPCIDevice->getDeviceMemoryWithRegister(
kIOPCIConfigBaseAddress0 );
if( mem )
IOLog("Range@0x%x %08lx:%08lx\n", kIOPCIConfigBaseAddress0,
mem->getPhysicalAddress(), mem->getLength());
/* map a range based on its config space base address register,
* this is how the driver gets access to its memory mapped registers
* the getVirtualAddress() method returns a kernel virtual address
* for the register mapping */
map = fPCIDevice->mapDeviceMemoryWithRegister(
kIOPCIConfigBaseAddress0 );
if( map ) {
IOLog("Range@0x%x (%08lx) mapped to kernel virtual address %08x\n",
kIOPCIConfigBaseAddress0,
map->getPhysicalAddress(),
map->getVirtualAddress());
/* release the map object, and the mapping itself */
map->release();
}
/* read a config space register */
IOLog("Config register@0x%x = %08lx\n", kIOPCIConfigCommand,
fPCIDevice->configRead32(kIOPCIConfigCommand) );
// construct a memory descriptor for a buffer below the 4Gb line &
// so addressable by 32 bit DMA. This could be used for a
// DMA program buffer for example
IOBufferMemoryDescriptor * bmd =
IOBufferMemoryDescriptor::inTaskWithPhysicalMask(
// task to hold the memory
kernel_task,
// options
kIOMemoryPhysicallyContiguous,
// size
64*1024,
// physicalMask - 32 bit addressable and page aligned
0x00000000FFFFF000ULL);
if (bmd) {
generateDMAAddresses(bmd);
} else {
IOLog("IOBufferMemoryDescriptor::inTaskWithPhysicalMask failed\n");
}
fLowMemory = bmd;
/* publish ourselves so clients can find us */
registerService();
return( true );
}