Return to Apple96BusState.h CVS log

Up to [Apple Darwin 0.x] / kernel / bsd / dev / ppc / drvApple96_SCSI

Annotation of kernel/bsd/dev/ppc/drvApple96_SCSI/Apple96BusState.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: /**
                     26:  * Copyright (c) 1994-1996 NeXT Software, Inc.  All rights reserved. 
                     27:  * Copyright 1997 Apple Computer Inc. All Rights Reserved.
                     28:  * @author     Martin Minow    mailto:[email protected]
                     29:  * @revision   1997.02.17      Initial conversion from AMDPCSCSIDriver sources.
                     30:  *
                     31:  * Set tabs every 4 characters.
                     32:  *
                     33:  * Apple96BusState.h - Curio-specific methods for Apple96 SCSI driver.
                     34:  * Apple96SCSI is closely based on Doug Mitchell's AMD 53C974/79C974 driver.
                     35:  *
                     36:  * Edit History
                     37:  * 1997.02.18  MM              Initial conversion from AMDPCSCSIDriver sources. 
                     38:  */
                     39:  
                     40: #import "Apple96SCSI.h"
                     41: 
                     42: @interface Apple96_SCSI(BusState)
                     43: 
                     44: /*
                     45:  * Methods invoked upon interrupt. One per legal gBusState.
                     46:  * These are actually private and are only called by hardwareInterrupt.
                     47:  */
                     48: - (void)                       fsmDisconnected;
                     49: - (void)                       fsmHandleReselectionInterrupt;  /* Subroutine to fsmDisconnected */
                     50: - (void)                       fsmSelecting;
                     51: - (void)                       fsmReselecting;
                     52: - (void)                       fsmReselectionAction;
                     53: - (void)                       fsmInitiator;
                     54: - (void)                       fsmCompleting;
                     55: - (void)                       fsmWaitForBusFree;
                     56: - (void)                       fsmDMAComplete;
                     57: - (void)                       fsmSendingMsg;
                     58: - (void)                       fsmSelecting;
                     59: - (void)                       fsmGettingMsg;
                     60: - (IOReturn)           fsmProcessMessage;
                     61: - (void)                       fsmSelecting;
                     62: - (void)                       fsmSendingCmd;
                     63: - (void)                       fsmStartErrorRecovery
                     64:                                                : (sc_status_t) status
                     65:                        reason          : (const char *) reason;
                     66: - (void)                       fsmErrorRecoveryInterruptService;
                     67: - (void)                       fsmContinueErrorRecovery;
                     68: 
                     69: - (void)                       putMessageOutByte
                     70:                                                : (UInt8)       messageByte
                     71:                        setATN          : (Boolean) setATN;
                     72: 
                     73: /*
                     74:  * This is called after an interrupt leaves us as SCS_RESELECTING
                     75:  */
                     76: - (void)                       fsmReselectionAction;
                     77: /*
                     78:  * This is is called after an interrupt leaves us as SCS_INITIATOR. 
                     79:  */
                     80: - (void)                       fsmPhaseChange;
                     81: /*
                     82:  * Common code (from fsmPhaseChange) to start DATI or DATO transfer.
                     83:  */
                     84: - (void)                       fsmStartDataPhase;
                     85: /*
                     86:  * Disable specified mode for activeCmd's target.
                     87:  */
                     88:  
                     89: typedef enum {
                     90:        kTargetModeCmdQueue
                     91: } TargetMode;  
                     92: 
                     93: - (void)                       disableMode
                     94:                                                : (TargetMode) mode;
                     95: 
                     96: /**
                     97:  * Validate the target's reselection byte (put on the bus before
                     98:  * reselecting us). Erase the initiator ID and convert the other
                     99:  * bit into an index. The algorithm should be faster than a
                    100:  * sequential search, but it probably doesn't matter much.
                    101:  * @return     IO_R_SUCCESS if successful (gCurrentTarget is now valid).
                    102:  *                     SR_IOST_BV if the select byte is incorrect.
                    103:  * This function does not check whether there actually
                    104:  * is a command pending for this target.
                    105:  */
                    106: - (IOReturn) getReselectionTargetID
                    107:                                                : (UInt8) selectByte;
                    108: 
                    109: @end

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