IOReturn XboxOneControllerDriver::sendHello()
{
IOReturn ior = kIOReturnSuccess;
IOMemoryDescriptor* hello = nullptr;
IOByteCount bytesWritten = 0;
constexpr size_t helloSize = sizeof XboxOneControllerHelloMessage;
if (_interruptPipe == nullptr) // paranoid check
{
IO_LOG_DEBUG("_interruptPipe is null");
ior = kIOReturnInternalError;
goto cleanup;
}
// Create the hello message that we're about to send to the controller.
hello = IOBufferMemoryDescriptor::inTaskWithOptions(kernel_task, 0, helloSize);
if (hello == nullptr)
{
IO_LOG_DEBUG("Could not allocate buffer for hello message.");
ior = kIOReturnNoMemory;
goto cleanup;
}
bytesWritten = hello->writeBytes(0, XboxOneControllerHelloMessage, helloSize);
if (bytesWritten != helloSize) // paranoid check
{
ior = kIOReturnOverrun;
goto cleanup;
}
// Now send the message
ior = _interruptPipe->Write(hello, 0, 0, hello->getLength());
if (ior != kIOReturnSuccess)
{
IO_LOG_DEBUG("Couldn't send hello message to controller: %08x\n", ior);
goto cleanup;
}
cleanup:
if (hello != nullptr)
{
hello->release();
}
return ior;
}
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 );
}
IOReturn
SATSMARTUserClient::GetIdentifyData (UInt32 * dataOut,
IOByteCount * outputSize)
{
IOReturn status = kIOReturnSuccess;
IOSATCommand * command = NULL;
IOMemoryDescriptor * buffer = NULL;
DEBUG_LOG("%s[%p]::%s %p(%ld)\n", getClassName(), this, __FUNCTION__, dataOut, (long)(outputSize));
if (!dataOut || !outputSize || *outputSize < kATADefaultSectorSize ) {
return kIOReturnBadArgument;
}
fOutstandingCommands++;
if ( isInactive ( ) )
{
status = kIOReturnNoDevice;
goto ErrorExit;
}
fProvider->retain ( );
command = AllocateCommand ( );
if ( command == NULL )
{
status = kIOReturnNoResources;
goto ReleaseProvider;
}
buffer = IOMemoryDescriptor::withAddress(dataOut, kATADefaultSectorSize, kIODirectionIn);
if ( buffer == NULL )
{
status = kIOReturnNoResources;
goto ReleaseCommand;
}
status = buffer->prepare ( );
if ( status != kIOReturnSuccess )
{
goto ReleaseBuffer;
}
command->setBuffer ( buffer );
command->setByteCount ( kATADefaultSectorSize );
command->setTransferChunkSize ( kATADefaultSectorSize );
command->setOpcode ( kATAFnExecIO );
command->setTimeoutMS ( kATAThirtySecondTimeoutInMS );
command->setCommand ( kATAcmdDriveIdentify );
command->setFlags ( mATAFlagIORead );
command->setRegMask ( ( ataRegMask ) ( mATAErrFeaturesValid | mATAStatusCmdValid ) );
status = SendSMARTCommand ( command );
if ( status == kIOReturnSuccess )
{
#if defined(__BIG_ENDIAN__)
UInt8 * bufferToCopy = identifyDataPtr;
// The identify device info needs to be byte-swapped on big-endian (ppc)
// systems becuase it is data that is produced by the drive, read across a
// 16-bit little-endian PCI interface, directly into a big-endian system.
// Regular data doesn't need to be byte-swapped because it is written and
// read from the host and is intrinsically byte-order correct.
IOByteCount index;
UInt8 temp;
UInt8 * firstBytePtr;
UInt8 * identifyDataPtr = ( UInt8 * )dataOut;
for ( index = 0; index < buffer->getLength ( ); index += 2 )
{
firstBytePtr = identifyDataPtr; // save pointer
temp = *identifyDataPtr++; // Save Byte0, point to Byte1
*firstBytePtr = *identifyDataPtr; // Byte0 = Byte1
*identifyDataPtr++ = temp; // Byte1 = Byte0
}
#endif
*outputSize = buffer->getLength ( );
DEBUG_LOG("%s[%p]::%s cpy %p %p\n", getClassName(), this, __FUNCTION__, (void*)*outputSize, (void*)buffer->getLength());
}
ReleaseBufferPrepared:
buffer->complete ( );
ReleaseBuffer:
buffer->release ( );
buffer = NULL;
ReleaseCommand:
DeallocateCommand ( command );
command = NULL;
ReleaseProvider:
fProvider->release ( );
ErrorExit:
fOutstandingCommands--;
DEBUG_LOG("%s[%p]::%s result %x\n", getClassName(), this, __FUNCTION__, status);
return status;
}
IOReturn
SATSMARTUserClient::ReadDataThresholds (UInt32 * dataOut,
IOByteCount * outputSize)
{
IOReturn status = kIOReturnSuccess;
IOSATCommand * command = NULL;
IOMemoryDescriptor * buffer = NULL;
DEBUG_LOG("%s[%p]::%s\n", getClassName(), this, __FUNCTION__);
if (!dataOut || !outputSize || *outputSize != sizeof ( ATASMARTDataThresholds ) ) {
return kIOReturnBadArgument;
}
fOutstandingCommands++;
if ( isInactive ( ) )
{
status = kIOReturnNoDevice;
goto ErrorExit;
}
fProvider->retain ( );
command = AllocateCommand ( );
if ( command == NULL )
{
status = kIOReturnNoResources;
goto ReleaseProvider;
}
buffer = IOMemoryDescriptor::withAddress(dataOut, sizeof ( ATASMARTDataThresholds ), kIODirectionIn);
if ( buffer == NULL )
{
status = kIOReturnNoResources;
goto ReleaseCommand;
}
status = buffer->prepare ( );
if ( status != kIOReturnSuccess )
{
goto ReleaseBuffer;
}
command->setBuffer ( buffer );
command->setByteCount ( sizeof ( ATASMARTDataThresholds ) );
command->setFeatures ( kFeaturesRegisterReadDataThresholds );
command->setOpcode ( kATAFnExecIO );
command->setTimeoutMS ( kATAThirtySecondTimeoutInMS );
command->setCylLo ( kSMARTMagicCylinderLoValue );
command->setCylHi ( kSMARTMagicCylinderHiValue );
command->setCommand ( kATAcmdSMART );
command->setFlags ( mATAFlagIORead );
status = SendSMARTCommand ( command );
if ( status == kIOReturnIOError )
{
if ( command->getEndErrorReg ( ) & 0x04 )
{
ERROR_LOG ( "ReadDataThresholds unsupported\n" );
status = kIOReturnUnsupported;
}
if ( command->getEndErrorReg ( ) & 0x10 )
{
ERROR_LOG ( "ReadDataThresholds Not readable\n" );
status = kIOReturnNotReadable;
}
}
*outputSize = buffer->getLength();
buffer->complete ( );
ReleaseBuffer:
buffer->release ( );
buffer = NULL;
ReleaseCommand:
DeallocateCommand ( command );
command = NULL;
ReleaseProvider:
fProvider->release ( );
ErrorExit:
fOutstandingCommands--;
DEBUG_LOG("%s[%p]::%s result %d\n", getClassName(), this, __FUNCTION__, status);
return status;
}
IOReturn
SATSMARTUserClient::ReadLogAtAddress ( ATASMARTReadLogStruct * structIn,
void * structOut,
IOByteCount inStructSize,
IOByteCount *outStructSize)
{
IOReturn status = kIOReturnSuccess;
IOSATCommand * command = NULL;
IOMemoryDescriptor * buffer = NULL;
DEBUG_LOG("%s[%p]::%s %p(%ld) %p(%ld)\n", getClassName(), this, __FUNCTION__, structIn, (long)inStructSize, structOut, (long)(outStructSize));
if ( inStructSize != sizeof ( ATASMARTReadLogStruct ) || !outStructSize || *outStructSize < 1) {
return kIOReturnBadArgument;
}
fOutstandingCommands++;
if ( isInactive ( ) )
{
status = kIOReturnNoDevice;
goto ErrorExit;
}
fProvider->retain ( );
command = AllocateCommand ( );
if ( command == NULL )
{
status = kIOReturnNoResources;
goto ReleaseProvider;
}
buffer = IOMemoryDescriptor::withAddress (structOut, *outStructSize, kIODirectionIn);
if ( buffer == NULL )
{
status = kIOReturnNoResources;
goto ReleaseCommand;
}
status = buffer->prepare ( );
DEBUG_LOG("%s[%p]::%s status %x\n", getClassName(), this, __FUNCTION__, status);
if ( status != kIOReturnSuccess )
{
goto ReleaseBuffer;
}
command->setBuffer ( buffer );
command->setByteCount ( buffer->getLength());
command->setFeatures ( kFeaturesRegisterReadLogAtAddress );
command->setOpcode ( kATAFnExecIO );
command->setTimeoutMS ( kATAThirtySecondTimeoutInMS );
command->setSectorCount ( structIn->numSectors );
command->setSectorNumber ( structIn->logAddress );
command->setCylLo ( kSMARTMagicCylinderLoValue );
command->setCylHi ( kSMARTMagicCylinderHiValue );
command->setCommand ( kATAcmdSMART );
command->setFlags ( mATAFlagIORead );
status = SendSMARTCommand ( command );
if ( status == kIOReturnIOError )
{
if ( command->getEndErrorReg ( ) & 0x04 )
{
ERROR_LOG ( "ReadLogAtAddress %d unsupported\n", structIn->logAddress );
status = kIOReturnUnsupported;
}
if ( command->getEndErrorReg ( ) & 0x10 )
{
ERROR_LOG ( "ReadLogAtAddress %d unreadable\n", structIn->logAddress );
status = kIOReturnNotReadable;
}
}
*outStructSize = buffer->getLength();
buffer->complete ( );
ReleaseBuffer:
buffer->release ( );
buffer = NULL;
ReleaseCommand:
DeallocateCommand ( command );
command = NULL;
ReleaseProvider:
fProvider->release ( );
ErrorExit:
fOutstandingCommands--;
DEBUG_LOG("%s[%p]::%s result %d\n", getClassName(), this, __FUNCTION__, status);
return status;
}