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