/* * Copyright (c) 1998-2006 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.2 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ #ifndef _IOKIT_IOUSBCONTROLLERV2_H #define _IOKIT_IOUSBCONTROLLERV2_H #include <IOKit/IODMACommand.h> #include <IOKit/usb/IOUSBControllerListElement.h> #include <IOKit/usb/IOUSBController.h> enum { kUSBHSHubCommandAddHub = 1, kUSBHSHubCommandRemoveHub = 2, kUSBHSHubFlagsMultiTT = 1 }; /*! @class IOUSBControllerV2 @abstract subclass of the IOUSBController to provide support for high speed devices and split transactions. @discussion The IOUSBController class provide sufficient functionality to work with full (12Mb/s) and low (1.5Mb/s) devices. IOUSBControllerV2 introduces the support for high (480Mb/s) speed devices from the USB 2.0 spec. In particular IOUSBControllerV2 indicates the high speed hub a full or low speed device is attached to so that split transactions can be directed to the hub at high speed to be forwarded to the full or low speed device by the hub. It also gives support for bulk endoints of greater than 256 bytes. */ class IOUSBControllerV2 : public IOUSBController { OSDeclareAbstractStructors(IOUSBControllerV2) protected: // These for keeping track of high speed ancestor to allow controller to do splits. // UInt8 _highSpeedHub[128]; UInt8 _highSpeedPort[128]; struct V2ExpansionData { UInt8 _multiTT[128]; IOUSBCommand *ClearTTCommand; IOUSBControllerIsochEndpoint *_isochEPList; // linked list of active Isoch "endpoints" IOUSBControllerIsochEndpoint *_freeIsochEPList; // linked list of freed Isoch EP data structures thread_call_t _returnIsochDoneQueueThread; }; V2ExpansionData *_v2ExpansionData; // Super's expansion data #define _freeUSBCommandPool _expansionData->freeUSBCommandPool #define _freeUSBIsocCommandPool _expansionData->freeUSBIsocCommandPool #define _watchdogUSBTimer _expansionData->watchdogUSBTimer #define _controllerTerminating _expansionData->_terminating #define _watchdogTimerActive _expansionData->_watchdogTimerActive #define _pcCardEjected _expansionData->_pcCardEjected #define _busNumber _expansionData->_busNumber #define _currentSizeOfCommandPool _expansionData->_currentSizeOfCommandPool #define _currentSizeOfIsocCommandPool _expansionData->_currentSizeOfIsocCommandPool #define _controllerSpeed _expansionData->_controllerSpeed #define _activeIsochTransfers _expansionData->_activeIsochTransfers // this class's expansion data #define _isochEPList _v2ExpansionData->_isochEPList #define _freeIsochEPList _v2ExpansionData->_freeIsochEPList #define _returnIsochDoneQueueThread _v2ExpansionData->_returnIsochDoneQueueThread virtual bool init( OSDictionary * propTable ); virtual bool start( IOService * provider ); virtual void free(); static IOReturn DoCreateEP(OSObject *owner, void *arg0, void *arg1, void *arg2, void *arg3); static void clearTTHandler( OSObject * target, void * parameter, IOReturn status, UInt32 bufferSizeRemaining ); public: /*! @function openPipe Open a pipe to the specified device endpoint @param address Address of the device on the USB bus @param speed of the device: kUSBDeviceSpeedLow, kUSBDeviceSpeedFull or kUSBDeviceSpeedHigh @param endpoint description of endpoint to connect to */ virtual IOReturn OpenPipe( USBDeviceAddress address, UInt8 speed, Endpoint * endpoint ); /*! @function CreateDevice @abstract Create a new device as IOUSBController, making a note of the high speed hub device ID and port number the full/low speed device is attached to. @param newDevice new device object to work with @param deviceAddress USB device ID @param maxPacketSize max packet size of endpoint zero @param speed speed of the device kUSBDeviceSpeedLow, kUSBDeviceSpeedFull, kUSBDeviceSpeedHigh @param powerAvailable power available to the device @param hub USB ID of hub the device is immediatly attached to. (Not necessarily high speed) @param port port number of port the device is attached to. */ virtual IOReturn CreateDevice( IOUSBDevice *newDevice, USBDeviceAddress deviceAddress, UInt8 maxPacketSize, UInt8 speed, UInt32 powerAvailable, USBDeviceAddress hub, int port); /*! @function ConfigureDeviceZero @abstract configure pipe zero of device zero, as IOUSBController, but also keeping note of high speed hub device is attached to. @param maxPacketSize max packet size for the pipe @param speed speed of the device kUSBDeviceSpeedLow, kUSBDeviceSpeedFull, kUSBDeviceSpeedHigh @param hub USB ID of hub the device is immediatly attached to. (Not necessarily high speed) @param port port number of port the device is attached to. */ virtual IOReturn ConfigureDeviceZero(UInt8 maxPacketSize, UInt8 speed, USBDeviceAddress hub, int port); /*! @function UIMCreateControlEndpoint @abstract Create an endpoint in the controller to do control transactions. @param functionNumber USB device ID of device @param endpointNumber endpoint address of the endpoint in the device @param maxPacketSize maximum packet size of this endpoint @param speed speed of the device kUSBDeviceSpeedLow, kUSBDeviceSpeedFull, kUSBDeviceSpeedHigh @param highSpeedHub If speed is not kUSBDeviceSpeedHigh, the address of the high speed hub to address split transactions to. @param highSpeedPort If speed is not kUSBDeviceSpeedHigh, the hub port to address split transactions to */ virtual IOReturn UIMCreateControlEndpoint( UInt8 functionNumber, UInt8 endpointNumber, UInt16 maxPacketSize, UInt8 speed, USBDeviceAddress highSpeedHub, int highSpeedPort) = 0; /*! @function UIMCreateBulkEndpoint @abstract Create an endpoint in the controller to do bulk transactions. @param functionNumber USB device ID of device @param endpointNumber endpoint address of the endpoint in the device @param direction Direction of data flow. kUSBIn or kUSBOut @param maxPacketSize maximum packet size of this endpoint @param speed speed of the device kUSBDeviceSpeedFull, kUSBDeviceSpeedHigh @param highSpeedHub If speed is not kUSBDeviceSpeedHigh, the address of the high speed hub to address split transactions to. @param highSpeedPort If speed is not kUSBDeviceSpeedHigh, the hub port to address split transactions to */ virtual IOReturn UIMCreateBulkEndpoint( UInt8 functionNumber, UInt8 endpointNumber, UInt8 direction, UInt8 speed, UInt16 maxPacketSize, USBDeviceAddress highSpeedHub, int highSpeedPort) = 0; /*! @function UIMCreateInterruptEndpoint @abstract Create an endpoint in the controller to do interrupt transactions. @param functionAddress USB device ID of device @param endpointNumber endpoint address of the endpoint in the device @param direction Direction of data flow. kUSBIn or kUSBOut @param speed speed of the device kUSBDeviceSpeedLow, kUSBDeviceSpeedFull, kUSBDeviceSpeedHigh @param maxPacketSize maximum packet size of this endpoint @param pollingRate The maximum polling interval from the endpoint descriptor. @param highSpeedHub If speed is not kUSBDeviceSpeedHigh, the address of the high speed hub to address split transactions to. @param highSpeedPort If speed is not kUSBDeviceSpeedHigh, the hub port to address split transactions to */ virtual IOReturn UIMCreateInterruptEndpoint( short functionAddress, short endpointNumber, UInt8 direction, short speed, UInt16 maxPacketSize, short pollingRate, USBDeviceAddress highSpeedHub, int highSpeedPort) = 0; /*! @function UIMCreateIsochEndpoint @abstract Create an endpoint in the controller to do Isochronous transactions. @param functionAddress USB device ID of device @param endpointNumber endpoint address of the endpoint in the device @param maxPacketSize maximum packet size of this endpoint @param direction Specifies direction for the endpoint. kUSBIn or KUSBOut. @param highSpeedHub If non zero, this is a full speed device, the address of the high speed hub to address split transactions to. @param highSpeedPort If highSpeedHub is non zero, the hub port to address split transactions to */ virtual IOReturn UIMCreateIsochEndpoint( short functionAddress, short endpointNumber, UInt32 maxPacketSize, UInt8 direction, USBDeviceAddress highSpeedHub, int highSpeedPort) = 0; static void ReturnIsochDoneQueueEntry(OSObject *target, thread_call_param_t endpointPtr); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 0); virtual IOReturn AddHSHub(USBDeviceAddress highSpeedHub, UInt32 flags); static IOReturn DOHSHubMaintenance(OSObject *owner, void *arg0, void *arg1, void *arg2, void *arg3); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 1); virtual IOReturn UIMHubMaintenance(USBDeviceAddress highSpeedHub, UInt32 highSpeedPort, UInt32 command, UInt32 flags); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 2); virtual IOReturn RemoveHSHub(USBDeviceAddress highSpeedHub); static IOReturn DOSetTestMode(OSObject *owner, void *arg0, void *arg1, void *arg2, void *arg3); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 3); virtual IOReturn SetTestMode(UInt32 mode, UInt32 port); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 4); virtual IOReturn UIMSetTestMode(UInt32 mode, UInt32 port); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 5); virtual UInt64 GetMicroFrameNumber( void ); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 6); virtual void ClearTT(USBDeviceAddress addr, UInt8 endpt, Boolean IN); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 7); /*! @function Read Read from an interrupt or bulk endpoint @param buffer place to put the transferred data @param address Address of the device on the USB bus @param endpoint description of endpoint @param completion describes action to take when buffer has been filled @param noDataTimeout number of milliseconds of no data movement before the request is aborted @param completionTimeout number of milliseonds after the command is on the bus in which it must complete @param reqCount number of bytes requested for the transfer (must not be greater than the length of the buffer) */ virtual IOReturn ReadV2( IOMemoryDescriptor * buffer, USBDeviceAddress address, Endpoint * endpoint, IOUSBCompletionWithTimeStamp * completion, UInt32 noDataTimeout, UInt32 completionTimeout, IOByteCount reqCount ); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 8); /*! @function UIMCreateIsochEndpoint @abstract Create an endpoint in the controller to do Isochronous transactions. @param functionAddress USB device ID of device @param endpointNumber endpoint address of the endpoint in the device @param maxPacketSize maximum packet size of this endpoint @param direction Specifies direction for the endpoint. kUSBIn or KUSBOut. @param highSpeedHub If non zero, this is a full speed device, the address of the high speed hub to address split transactions to. @param highSpeedPort If highSpeedHub is non zero, the hub port to address split transactions to @param interval The encoded interval value from the endpoint descriptor */ virtual IOReturn UIMCreateIsochEndpoint( short functionAddress, short endpointNumber, UInt32 maxPacketSize, UInt8 direction, USBDeviceAddress highSpeedHub, int highSpeedPort, UInt8 interval); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 9); virtual IOUSBControllerIsochEndpoint* AllocateIsochEP(void); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 10); virtual IOReturn DeallocateIsochEP(IOUSBControllerIsochEndpoint *pEP); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 11); virtual IOUSBControllerIsochEndpoint* FindIsochronousEndpoint(short functionNumber, short endpointNumber, short direction, IOUSBControllerIsochEndpoint* *pEDBack); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 12); virtual IOUSBControllerIsochEndpoint* CreateIsochronousEndpoint(short functionNumber, short endpointNumber, short direction); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 13); virtual void PutTDonToDoList(IOUSBControllerIsochEndpoint* pED, IOUSBControllerIsochListElement *pTD); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 14); virtual IOUSBControllerIsochListElement *GetTDfromToDoList(IOUSBControllerIsochEndpoint* pED); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 15); virtual void PutTDonDeferredQueue(IOUSBControllerIsochEndpoint* pED, IOUSBControllerIsochListElement *pTD); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 16); virtual IOUSBControllerIsochListElement *GetTDfromDeferredQueue(IOUSBControllerIsochEndpoint* pED); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 17); virtual void PutTDonDoneQueue(IOUSBControllerIsochEndpoint* pED, IOUSBControllerIsochListElement *pTD, bool checkDeferred); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 18); virtual IOUSBControllerIsochListElement *GetTDfromDoneQueue(IOUSBControllerIsochEndpoint* pED); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 19); virtual void ReturnIsochDoneQueue(IOUSBControllerIsochEndpoint*); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 20); virtual IODMACommand *GetNewDMACommand(); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 21); /*! @function GetLowLatencyOptionsAndPhysicalMask @abstract Low Latency transfers require that the client have access to the memory after the Isochronous I/O request has already been scheduled. This might be used, for example to fill in outgoing data "just in time." Some controllers, however, may have requirements which need to be followed in order to make sure that the memory buffer isn't moved after the call is made. This call will return an IOOptionBits and mach_vm_address_t which can be used in a call to IOBufferMemoryDescriptor::inTaskWithPhysicalMask which will help meet these requirements. @param optionBits Pointer to an an IOOptionBits. The only bit which may be returned is kIOMemoryPhysicallyContiguous. Other bits, e.g. direction bits, must be ORd in by the client as needed. This call replaces the old property based method of obtaining this information. @param physicalMask Pointer to a mach_vm_address_t which should be used in the call to IOBufferMemoryDescriptor::inTaskWithPhysicalMask and will guarantee that when the memory is wired down it will be accessible by both the client and the USB controller at the same time. @result returns kIOReturnSuccess if the method is implemented by the controller, otherwise kIOReturnUnsupported */ virtual IOReturn GetLowLatencyOptionsAndPhysicalMask(IOOptionBits *optionBits, mach_vm_address_t *physicalMask); OSMetaClassDeclareReservedUsed(IOUSBControllerV2, 22); /*! @function GetFrameNumberWithTime @abstract Real Time A/V applications send and receive Iscohronous data scheduled on certain USB frame numbers. The clock for these frame numbers is independent of the system clock, and drivers need to synchronize these two clocks. This routine will return a system time which corresponds to the beginning of a USB frame number. It is not necessarily the currrent frame, but it will be a frame in the recent past (within the past minute). The jitter between the start of the USB frame and the system time will be as low as possible, but due to hardware interrupt latencies could be as high as 200 microseconds. @param frameNumber A pointer to a UInt64 in which to hold the USB frame number corresponding to the given system time. @param theTime A pointer to an AbsoluteTime corresponding to the system time at the beginning of the given USB frame number. @result returns kIOReturnSuccess if the method is implemented by the controller, otherwise kIOReturnUnsupported */ virtual IOReturn GetFrameNumberWithTime(UInt64* frameNumber, AbsoluteTime *theTime); OSMetaClassDeclareReservedUnused(IOUSBControllerV2, 23); OSMetaClassDeclareReservedUnused(IOUSBControllerV2, 24); OSMetaClassDeclareReservedUnused(IOUSBControllerV2, 25); OSMetaClassDeclareReservedUnused(IOUSBControllerV2, 26); OSMetaClassDeclareReservedUnused(IOUSBControllerV2, 27); OSMetaClassDeclareReservedUnused(IOUSBControllerV2, 28); OSMetaClassDeclareReservedUnused(IOUSBControllerV2, 29); }; #endif /* ! _IOKIT_IOUSBCONTROLLERV2_H */