xnu-4903.270.47.tar.gz

[apple/xnu.git] / iokit / IOKit / IODMAEventSource.h

diff --git a/iokit/IOKit/IODMAEventSource.h b/iokit/IOKit/IODMAEventSource.h
index ce68f6f8607c27485fdbce3c87a894bcffca6417..88ffeed97da5f4d9c9bfb5587dfb7fd9caca0a72 100644 (file)
--- a/iokit/IOKit/IODMAEventSource.h
+++ b/iokit/IOKit/IODMAEventSource.h
@@ -2,7 +2,7 @@
  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- * 
+ *
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
- * 
+ *
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
- * 
+ *
  * The 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,
@@ -22,7 +22,7 @@
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 
@@ -34,48 +34,60 @@
 #include <IOKit/IODMAController.h>
 #include <IOKit/IOEventSource.h>
 
+class IODMAController;
+
 class IODMAEventSource : public IOEventSource
 {
-  OSDeclareDefaultStructors(IODMAEventSource);
-  
-  friend class IODMAController;
-  
- public:
-  typedef void (*Action)(OSObject *owner, IODMAEventSource *dmaES, IODMACommand *dmaCommand, IOReturn status, IOByteCount actualByteCount);
+       OSDeclareDefaultStructors(IODMAEventSource);
+
+       friend class IODMAController;
+
+public:
+       typedef void (*Action)(OSObject *owner, IODMAEventSource *dmaES, IODMACommand *dmaCommand, IOReturn status, IOByteCount actualByteCount, AbsoluteTime timeStamp);
 #define IODMAEventAction IODMAEventSource::Action
-  
- protected:
-  virtual void completeDMACommand(IODMACommand *dmaCommand);
-  virtual void notifyDMACommand(IODMACommand *dmaCommand, IOReturn status, IOByteCount actualByteCount);
-  
- public:
-  static IODMAEventSource *dmaEventSource(OSObject *owner,
-                                         IOService *provider,
-                                         Action completion = 0,
-                                         Action notification = 0,
-                                         UInt32 dmaIndex = 0);
-  
-  virtual IOReturn startDMACommand(IODMACommand *dmaCommand, IODirection direction, IOByteCount byteCount = 0, IOByteCount byteOffset = 0);
-  virtual IOReturn stopDMACommand(bool flush = false, mach_timespec_t *timeout = 0);
-  
-  virtual IOReturn queryDMACommand(IODMACommand **dmaCommand, IOByteCount *transferCount, bool waitForIdle = false);
-  
- private:
-  IOService       *dmaProvider;
-  IODMAController *dmaController;
-  UInt32          dmaIndex;
-  queue_head_t    dmaCommandsCompleted;
-  IOSimpleLock   *dmaCommandsCompletedLock;
-  Action          dmaCompletionAction;
-  Action          dmaNotificationAction;
-  bool            dmaSynchBusy;
-  
-  virtual bool init(OSObject *owner,
-                   IOService *provider,
-                   Action completion = 0,
-                   Action notification = 0,
-                   UInt32 dmaIndex = 0);
-  virtual bool checkForWork(void);
+
+protected:
+       virtual void completeDMACommand(IODMACommand *dmaCommand);
+       virtual void notifyDMACommand(IODMACommand *dmaCommand, IOReturn status, IOByteCount actualByteCount, AbsoluteTime timeStamp);
+
+public:
+       static IODMAEventSource *dmaEventSource(OSObject *owner,
+           IOService *provider,
+           Action completion = 0,
+           Action notification = 0,
+           UInt32 dmaIndex = 0);
+
+       virtual IOReturn startDMACommand(IODMACommand *dmaCommand, IODirection direction, IOByteCount byteCount = 0, IOByteCount byteOffset = 0);
+       virtual IOReturn stopDMACommand(bool flush = false, uint64_t timeout = UINT64_MAX);
+
+       virtual IOReturn queryDMACommand(IODMACommand **dmaCommand, IOByteCount *transferCount, bool waitForIdle = false);
+
+       virtual IOByteCount getFIFODepth(IODirection direction = kIODirectionNone);
+       virtual IOReturn setFIFODepth(IOByteCount depth);
+       virtual IOByteCount validFIFODepth(IOByteCount depth, IODirection direction);
+
+       virtual IOReturn setFrameSize(UInt8 byteCount);
+
+       virtual IOReturn setDMAConfig(UInt32 dmaIndex);
+       virtual bool validDMAConfig(UInt32 dmaIndex);
+
+private:
+       IOService       *dmaProvider;
+       IODMAController *dmaController;
+       UInt32          dmaIndex;
+       queue_head_t    dmaCommandsCompleted;
+       IOSimpleLock    *dmaCommandsCompletedLock;
+       Action          dmaCompletionAction;
+       Action          dmaNotificationAction;
+       bool            dmaSynchBusy;
+
+       virtual bool init(OSObject *owner,
+           IOService *provider,
+           Action completion = 0,
+           Action notification = 0,
+           UInt32 dmaIndex = 0);
+       virtual bool checkForWork(void) APPLE_KEXT_OVERRIDE;
+       virtual void free(void) APPLE_KEXT_OVERRIDE;
 };
 
 #endif /* _IOKIT_IODMAEVENTSOURCE_H */