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/* $OpenBSD: isa_machdep.h,v 1.2 1998/06/29 05:47:40 downsj Exp $ */
/*
* Copyright (c) 1997 Per Fogelstrom
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed under OpenBSD by
* Per Fogelstrom, Opsycon AB, Sweden.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _ISA_MACHDEP_H_
#define _ISA_MACHDEP_H_
typedef struct p4e_isa_bus *isa_chipset_tag_t;
/*
* I/O macros to access isa bus ports/memory.
* At the first glance theese macros may seem inefficient.
* However, the cpu executes an instruction every <10 ns
* so the bus is much slower so it doesn't matter, really.
*/
#define isa_outb(x,y) outb(p4e_isa_io.bus_base + (x), y)
#define isa_inb(x) inb(p4e_isa_io.bus_base + (x))
struct p4e_isa_bus {
void *ic_data;
void (*ic_attach_hook) __P((struct device *, struct device *,
struct isabus_attach_args *));
void *(*ic_intr_establish) __P((isa_chipset_tag_t, int, int, int,
int (*)(void *), void *, char *));
void (*ic_intr_disestablish) __P((isa_chipset_tag_t, void *));
};
/*
* Functions provided to machine-independent ISA code.
*/
#define isa_attach_hook(p, s, a) /* \
(*(a)->iba_ic->ic_attach_hook)((p), (s), (a)) */
#define isa_intr_establish(c, i, t, l, f, a, w) \
(*(c)->ic_intr_establish)((c)->ic_data, (i), (t), (l), (f), (a), (w))
#define isa_intr_disestablish(c, h) \
(*(c)->ic_intr_disestablish)((c)->ic_data, (h))
#define __NO_ISA_INTR_CHECK /* FIXME */
/*
* Interrupt control struct used to control the ICU setup.
*/
struct intrhand {
struct intrhand *ih_next;
int (*ih_fun) __P((void *));
void *ih_arg;
u_long ih_count;
int ih_level;
int ih_irq;
char *ih_what;
};
#define ICU_LEN 16 /* Number of possible interrupt sources */
/*
* Let com.c know where our console is!
*/
#define CONADDR (0x2e8)
#define COM_FREQ (1843200 / 3) /* Clocked with 8Mhz instead of 24! */
extern void * isabr_intr_establish(isa_chipset_tag_t, int, int, int, int (*ih_fun) __P((void *)), void *, char *);
#endif /* _ISA_MACHDEP_H_ */
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