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isa_machdep.h revision 1.2 
      1 /*	$NetBSD: isa_machdep.h,v 1.2 2000/01/23 21:01:56 soda Exp $	*/
      2 /*      $OpenBSD: isa_machdep.h,v 1.5 1997/04/19 17:20:00 pefo Exp $  */
      3 
      4 /*
      5  * Copyright (c) 1996 Per Fogelstrom
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *      This product includes software developed by Per Fogelstrom
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 #ifndef _ISA_MACHDEP_H_
     34 #define _ISA_MACHDEP_H_
     35 
     36 typedef struct arc_isa_bus *isa_chipset_tag_t;
     37 
     38 /*
     39  *      I/O macros to access isa bus ports/memory.
     40  *      At the first glance theese macros may seem inefficient.
     41  *      However, the cpu executes an instruction every 7.5ns
     42  *      so the bus is much slower so it doesn't matter, really.
     43  */
     44 #define isa_outb(x,y)   outb(arc_bus_io.bus_base + (x), y)
     45 #define isa_inb(x)      inb(arc_bus_io.bus_base + (x))
     46 
     47 struct arc_isa_bus {
     48         void    *ic_data;
     49 
     50         void    (*ic_attach_hook) __P((struct device *, struct device *,
     51                     struct isabus_attach_args *));
     52         void    *(*ic_intr_establish) __P((isa_chipset_tag_t, int, int, int,
     53                     int (*)(void *), void *));
     54         void    (*ic_intr_disestablish) __P((isa_chipset_tag_t, void *));
     55 };
     56 
     57 
     58 /*
     59  * Functions provided to machine-independent ISA code.
     60  */
     61 #define isa_attach_hook(p, s, a)                             /*           \
     62     (*(a)->iba_ic->ic_attach_hook)((p), (s), (a)) */
     63 #define isa_intr_establish(c, i, t, l, f, a)                         \
     64     (*(c)->ic_intr_establish)((c)->ic_data, (i), (t), (l), (f), (a))
     65 #define isa_intr_disestablish(c, h)                                     \
     66     (*(c)->ic_intr_disestablish)((c)->ic_data, (h))
     67 
     68 void sysbeepstop __P((void *));
     69 void sysbeep __P((int, int));
     70 
     71 
     72 /*
     73  *	Interrupt control struct used to control the ICU setup.
     74  */
     75 
     76 struct intrhand {
     77 	struct	intrhand *ih_next;
     78 	int	(*ih_fun) __P((void *));
     79 	void    *ih_arg;
     80 	u_long  ih_count;
     81 	int     ih_level;
     82 	int     ih_irq;
     83 	char    *ih_what;
     84 };
     85 
     86 #endif /* _ISA_MACHDEP_H_ */
     87