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Annotation of kernel/bsd/dev/ppc/drvPPCATA/IdeCntDma.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: // Copyright 1997 by Apple Computer, Inc., all rights reserved.
                     26: /*     Copyright (c) 1991-1997 NeXT Software, Inc.  All rights reserved. 
                     27:  *
                     28:  * IdeCntDma.h - Interface for Dma category of IDE Controller device class.
                     29:  *
                     30:  * HISTORY
                     31:  */
                     32:  
                     33: #ifdef DRIVER_PRIVATE
                     34: 
                     35: #import <driverkit/return.h>
                     36: #import <driverkit/driverTypes.h>
                     37: #import <driverkit/IODevice.h>
                     38: #import <driverkit/ppc/directDevice.h>
                     39: #import <driverkit/generalFuncs.h>
                     40: #import "IdeCnt.h"
                     41: #import "IdeCntCmds.h"
                     42: 
                     43: @interface IdeController(Dma)
                     44: 
                     45: /*
                     46:  * Returns TRUE iff IDE DMA is allowed on this hardware. 
                     47:  */
                     48: 
                     49: /*
                     50:  * Called once during initialization to figure out if we can really do 
                     51:  * DMA transfers. Returns dma channel number.
                     52:  */
                     53: - (ide_return_t) initIdeDma:(unsigned int)unit; 
                     54: - (ide_return_t) allocDmaMemory;
                     55: 
                     56: /*
                     57:  * Called once during probe by IdeController Class to figure out  if the
                     58:  * hardware supports DMA (as opposed to the IDE drive supporting DMA). 
                     59:  */
                     60: 
                     61: - (ide_return_t) ideDmaRwCommon: (ideIoReq_t *)ideIoReq;
                     62: 
                     63: - (ide_return_t) ideReadWriteDma: (ideRegsVal_t *)ideRegs fRead:(BOOL)read;
                     64: 
                     65: -(ide_return_t) setupDMA:(vm_offset_t) startAddr client:(vm_task_t) client length:(int)length fRead:(BOOL)fRead;
                     66: -(ide_return_t) setupDBDMA:(vm_offset_t) startAddr client:(vm_task_t) client length:(int)length fRead:(BOOL)fRead;
                     67: -(ide_return_t) setupDMAList:(vm_offset_t) startAddr client:(vm_task_t) client length:(int)length fRead:(BOOL)fRead; 
                     68: 
                     69: - (uint) stopDBDMA;
                     70: - (uint) getDBDMATransferCount;
                     71: - (void) fixOHareDMACorruption_1;
                     72: - (void) fixOHareDMACorruption_2;
                     73: 
                     74: @end
                     75: 
                     76: #endif DRIVER_PRIVATE

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