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7562b0d606
Reenabled "SCIOCOMAND" ioctl. Restructured so low level drivers can easily request retries. Added preliminary fixed SCSI devices (should be revisited before 2.1) Added "ssc" device that can have its' (HBA, ID, LUN) set via ioctl.
64 lines
2.6 KiB
C
64 lines
2.6 KiB
C
/*
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* Contributed by HD Associates (contact: dufault@hda.com)
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* Copyright (c) 1992, 1993 HD Associates
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*
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* Berkeley style copyright. I've just snarfed it out of stdio.h:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)stdio.h 5.17 (Berkeley) 6/3/91
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* $Id: scsi_generic.h,v 1.2 1993/10/16 17:21:05 rgrimes Exp $
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*/
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/* generic SCSI header file. We use the same minor number format
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* as on SGI except that the flag bits aren't available because they
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* are used as the board index.
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*
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* The minor number format is:
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* FF UUU III (FFUU UIII)
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*
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* Where:
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* FF is the board index
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* UUU are the LUN
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* III is the SCSI ID (controller)
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*/
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#ifndef _SCSI_GENERIC_H_
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#define _SCSI_GENERIC_H_
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#define G_SCSI_FLAG(DEV) (((DEV) & 0xC0) >> 6)
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#define G_SCSI_UNIT(DEV) G_SCSI_FLAG(DEV)
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#define G_SCSI_LUN(DEV) (((DEV) & 0x38) >> 3)
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#define G_SCSI_ID(DEV) ((DEV) & 0x7)
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#define G_SCSI_MINOR(FLAG, LUN, ID) \
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(((FLAG) << 6) | ((LUN) << 3) | (ID))
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#endif /* _SCSI_GENERIC_H_ */
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