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      1 /*	$NetBSD: ncr5380var.h,v 1.5 2005/12/24 23:24:00 perry Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Allen Briggs.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Allen Briggs.
     17  * 4. The name of the author may not be used to endorse or promote products
     18  *    derived from this software without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 static volatile u_char	*scsi_enable = NULL;
     33 static volatile u_char	*scsi_flag   = NULL;
     34 
     35 static inline void
     36 scsi_clear_drq(void)
     37 {
     38 	int	s;
     39 
     40 	s = splhigh();
     41 	*scsi_flag = 0x80 | V2IF_SCSIDRQ;
     42 	splx(s);
     43 }
     44 
     45 static inline void
     46 scsi_clear_irq(void)
     47 {
     48 	int	s;
     49 
     50 	s = splhigh();
     51 	*scsi_flag = 0x80 | V2IF_SCSIIRQ;
     52 	splx(s);
     53 }
     54 
     55 static inline void
     56 scsi_ienable(void)
     57 {
     58 	int	s;
     59 
     60 	s = splhigh();
     61 	*scsi_enable = 0x80 | (V2IF_SCSIIRQ | V2IF_SCSIDRQ);
     62 	splx(s);
     63 }
     64 
     65 static inline void
     66 scsi_idisable(void)
     67 {
     68 	int	s;
     69 
     70 	s = splhigh();
     71 	*scsi_enable = V2IF_SCSIIRQ | V2IF_SCSIDRQ;
     72 	splx(s);
     73 }
     74 
     75 void	pdma_stat(void);
     76 void	pdma_cleanup(void);
     77 void	scsi_show(void);
     78 
     79