Return to AtapiCntInternal.h CVS log

Up to [Apple Darwin 0.x] / kernel / bsd / dev / ppc / drvPPCATA

Annotation of kernel/bsd/dev/ppc/drvPPCATA/AtapiCntInternal.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: /*
                     27:  * Copyright (c) 1995-1997 NeXT Software, Inc.  All rights reserved. 
                     28:  *
                     29:  * AtapiCntInternal.h - Definition of ATAPI controller class.
                     30:  *
                     31:  *
                     32:  * HISTORY 
                     33:  * 21-Mar-1995         Rakesh Dubey at NeXT 
                     34:  *     Created. 
                     35:  */
                     36:  
                     37: #import "AtapiCnt.h"
                     38: 
                     39: /*
                     40:  * Condition variable states for ioQueueLock.
                     41:  */
                     42: #define NO_WORK_AVAILABLE      0
                     43: #define WORK_AVAILABLE         1
                     44: 
                     45: @interface AtapiController(Internal)
                     46: 
                     47: /*
                     48:  * One-time only initialization.
                     49:  */
                     50: - initResources:controller;
                     51: 
                     52: /*
                     53:  * Free up local resources. 
                     54:  */
                     55: - free;
                     56: 
                     57: 
                     58: /*
                     59:  * Alloc/free command buffers.
                     60:  */
                     61: - (atapiBuf_t *)allocAtapiBuf;
                     62: - (void)freeAtapiBuf:(atapiBuf_t *)atapiBuf;
                     63: 
                     64: 
                     65: /*
                     66:  * -- Enqueue an atapiBuf_t on ioQueue<Disk,Nodisk>
                     67:  * -- wake up the I/O thread
                     68:  * -- wait for I/O complete (if atapiBuf->pending == NULL)
                     69:  */
                     70: - (IOReturn)enqueueAtapiBuf    : (atapiBuf_t *)atapiBuf;
                     71: 
                     72: /*
                     73:  * Either wake up the thread which is waiting on the atapiCmdBuf, or send an 
                     74:  * ioComplete back to client. atapiCmdBuf->status must be valid.
                     75:  */
                     76: - (void)atapiIoComplete                : (atapiBuf_t *)atapiBuf;
                     77: 
                     78: /*
                     79:  * Main command dispatch method.
                     80:  */
                     81: - (void)atapiCmdDispatch               : (atapiBuf_t *)atapiBuf;
                     82: 
                     83: /*
                     84:  * Unlock ioQLock, updating condition variable as appropriate.
                     85:  */
                     86: - (void)unlockIoQLock;
                     87: 
                     88: /*
                     89:  * Top-level I/O thread.
                     90:  */
                     91: volatile void atapiThread(AtapiController *atapiCnt);
                     92: 
                     93: @end   /* AtapiController(Internal) */
                     94: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.