xnu-6153.11.26.tar.gz

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

diff --git a/iokit/IOKit/IODMAController.h b/iokit/IOKit/IODMAController.h
index 1e6632fbb9a5de47c3f3348d84e0f132eb775ab7..2d8682cc20ee8912e5902383c414b05ce9c0eadb 100644 (file)
--- a/iokit/IOKit/IODMAController.h
+++ b/iokit/IOKit/IODMAController.h
@@ -2,7 +2,7 @@
  * Copyright (c) 1998-2000 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@
  */
 
@@ -33,31 +33,39 @@
 #include <IOKit/IODMAEventSource.h>
 #include <IOKit/IOService.h>
 
+class IODMAEventSource;
+
 class IODMAController : public IOService
 {
-  OSDeclareAbstractStructors(IODMAController);
-  
-  friend class IODMAEventSource;
-  
- private:
-  IOService       *_provider;
-  const OSSymbol  *_dmaControllerName;
-  
- protected:
-  virtual void registerDMAController(IOOptionBits options = 0);  
-  virtual IOReturn initDMAChannel(IOService *provider, IODMAEventSource *dmaES, UInt32 *dmaIndex, UInt32 reqIndex) = 0;
-  virtual IOReturn startDMACommand(UInt32 dmaIndex, IODMACommand *dmaCommand, IODirection direction,
-                                  IOByteCount byteCount = 0, IOByteCount byteOffset = 0) = 0;
-  virtual IOReturn stopDMACommand(UInt32 dmaIndex, bool flush = false, mach_timespec_t * timeout = 0) = 0;
-  virtual void completeDMACommand(IODMAEventSource *dmaES, IODMACommand *dmaCommand);
-  virtual void notifyDMACommand(IODMAEventSource *dmaES, IODMACommand *dmaCommand, IOReturn status, IOByteCount actualByteCount);
-  virtual IOReturn queryDMACommand(UInt32 dmaIndex, IODMACommand **dmaCommand, IOByteCount *transferCount, bool waitForIdle = false) = 0;
-  
- public:
-  static const OSSymbol *createControllerName(UInt32 phandle);
-  static IODMAController *getController(IOService *provider, UInt32 dmaIndex);
-  
-  virtual bool start(IOService *provider);
+       OSDeclareAbstractStructors(IODMAController);
+
+       friend class IODMAEventSource;
+
+private:
+       IOService       *_provider;
+       const OSSymbol  *_dmaControllerName;
+
+protected:
+       virtual void registerDMAController(IOOptionBits options = 0);
+       virtual IOReturn initDMAChannel(IOService *provider, IODMAEventSource *dmaES, UInt32 *dmaIndex, UInt32 reqIndex) = 0;
+       virtual IOReturn startDMACommand(UInt32 dmaIndex, IODMACommand *dmaCommand, IODirection direction,
+           IOByteCount byteCount = 0, IOByteCount byteOffset = 0) = 0;
+       virtual IOReturn stopDMACommand(UInt32 dmaIndex, bool flush = false, uint64_t timeout = UINT64_MAX) = 0;
+       virtual void completeDMACommand(IODMAEventSource *dmaES, IODMACommand *dmaCommand);
+       virtual void notifyDMACommand(IODMAEventSource *dmaES, IODMACommand *dmaCommand, IOReturn status, IOByteCount actualByteCount, AbsoluteTime timeStamp);
+       virtual IOReturn queryDMACommand(UInt32 dmaIndex, IODMACommand **dmaCommand, IOByteCount *transferCount, bool waitForIdle = false) = 0;
+       virtual IOByteCount getFIFODepth(UInt32 dmaIndex, IODirection direction) = 0;
+       virtual IOReturn setFIFODepth(UInt32 dmaIndex, IOByteCount depth) = 0;
+       virtual IOByteCount validFIFODepth(UInt32 dmaIndex, IOByteCount depth, IODirection direction) = 0;
+       virtual IOReturn setFrameSize(UInt32 dmaIndex, UInt8 byteCount) = 0;
+       virtual IOReturn setDMAConfig(UInt32 dmaIndex, IOService *provider, UInt32 reqIndex) = 0;
+       virtual bool validDMAConfig(UInt32 dmaIndex, IOService *provider, UInt32 reqIndex) = 0;
+
+public:
+       static const OSSymbol *createControllerName(UInt32 phandle);
+       static IODMAController *getController(IOService *provider, UInt32 dmaIndex);
+
+       virtual bool start(IOService *provider) APPLE_KEXT_OVERRIDE;
 };