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Annotation of Examples/DriverKit/Adaptec1542B/Adaptec1542B_reloc.tproj/AHAThread.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1993 NeXT Computer, Inc.
                      3:  *
                      4:  * Adaptec 1542 SCSI controller I/O thread definitions.
                      5:  *
                      6:  * HISTORY
                      7:  *
                      8:  * 13 Apr 1993 Doug Mitchell at NeXT
                      9:  *     Created.
                     10:  */
                     11: 
                     12: #import <machkit/NXLock.h>
                     13: #import <mach/mach_types.h>
                     14: #import <mach/message.h>
                     15: #import <driverkit/interruptMsg.h>
                     16: #import "AHAController.h"
                     17: 
                     18: /*
                     19:  * Reason for calling -commandCompleted.
                     20:  */
                     21: typedef enum {
                     22:        CS_Complete,            // normal - controller completed command
                     23:        CS_Timeout,             // I/O timeout
                     24:        CS_Reset                // Bus was reset; abort
                     25: } completeStatus;
                     26: 
                     27: /*
                     28:  * Methods executed by the I/O thread.
                     29:  */
                     30: @interface AHAController(IOThread)
                     31: 
                     32: - (int)threadExecuteRequest    : (AHACommandBuf *)cmdBuf;
                     33: - (void)threadResetBus         : (AHACommandBuf *)cmdBuf;
                     34: - (int)ccbFromCmd              : (AHACommandBuf *)cmdBuf
                     35:                            ccb : (struct ccb *)ccb;
                     36: - runPendingCommands;
                     37: - (void)commandCompleted       : (struct ccb *)ccb 
                     38:                         reason : (completeStatus)status;
                     39: - (struct ccb *)allocCcb        : (BOOL)doDMA;
                     40: - (void)freeCcb                : (struct ccb *)ccb;
                     41: - (void)completeDMA            : (IOEISADMABuffer *)dmaList
                     42:                         length : (unsigned)xferLen;
                     43: - (void)abortDMA               : (IOEISADMABuffer *)dmaList
                     44:                         length : (unsigned)xferLen;
                     45: 
                     46: @end
                     47: 

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