115 lines
4.0 KiB
C
115 lines
4.0 KiB
C
/* $NetBSD: isavar.h,v 1.14 1995/01/03 03:14:35 mycroft Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1992 Berkeley Software Design, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* 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 by Berkeley Software
|
|
* Design, Inc.
|
|
* 4. The name of Berkeley Software Design must not be used to endorse
|
|
* or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``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 BERKELEY SOFTWARE DESIGN, INC. 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.
|
|
*
|
|
* BSDI Id: isavar.h,v 1.5 1992/12/01 18:06:00 karels Exp
|
|
*/
|
|
|
|
/*
|
|
* ISA driver attach arguments
|
|
*/
|
|
struct isa_attach_args {
|
|
int ia_iobase; /* base i/o address */
|
|
int ia_iosize; /* span of ports used */
|
|
int ia_irq; /* interrupt request */
|
|
int ia_drq; /* DMA request */
|
|
int ia_maddr; /* physical i/o mem addr */
|
|
u_int ia_msize; /* size of i/o memory */
|
|
void *ia_aux; /* driver specific */
|
|
};
|
|
|
|
#define IOBASEUNK -1 /* i/o address is unknown */
|
|
#define IRQUNK -1 /* interrupt request line is unknown */
|
|
#define DRQUNK -1 /* DMA request line is unknown */
|
|
#define MADDRUNK -1 /* shared memory address is unknown */
|
|
|
|
/*
|
|
* per-device ISA variables
|
|
*/
|
|
struct isadev {
|
|
struct device *id_dev; /* back pointer to generic */
|
|
struct isadev *id_bchain; /* forward link in bus chain */
|
|
};
|
|
|
|
/*
|
|
* ISA masterbus
|
|
*/
|
|
struct isa_softc {
|
|
struct device sc_dev; /* base device */
|
|
struct isadev *sc_isadev; /* list of all children */
|
|
};
|
|
|
|
#define cf_iobase cf_loc[0]
|
|
#define cf_iosize cf_loc[1]
|
|
#define cf_maddr cf_loc[2]
|
|
#define cf_msize cf_loc[3]
|
|
#define cf_irq cf_loc[4]
|
|
#define cf_drq cf_loc[5]
|
|
|
|
/*
|
|
* Interrupt handler chains. Interrupt handlers should return 0 for
|
|
* `not I', 1 (`I took care of it'), or -1 (`I guess it was mine, but
|
|
* I wasn't expecting it'). intr_establish() inserts a handler into
|
|
* the list. The handler is called with its (single) argument.
|
|
*/
|
|
struct intrhand {
|
|
int (*ih_fun)();
|
|
void *ih_arg;
|
|
u_long ih_count;
|
|
struct intrhand *ih_next;
|
|
int ih_level;
|
|
};
|
|
|
|
void intr_establish __P((int intr, int type, struct intrhand *));
|
|
void intr_disestablish __P((int intr, struct intrhand *));
|
|
void isa_establish __P((struct isadev *, struct device *));
|
|
|
|
/*
|
|
* software conventions
|
|
*/
|
|
typedef enum { BUS_ISA, BUS_EISA, BUS_MCA } isa_type;
|
|
|
|
extern int atdevbase; /* kernel virtual address of "hole" */
|
|
extern isa_type isa_bustype; /* type of bus */
|
|
|
|
/*
|
|
* Given a kernel virtual address for some location
|
|
* in the "hole" I/O space, return a physical address.
|
|
*/
|
|
#define ISA_PHYSADDR(v) ((caddr_t) ((u_long)(v) - atdevbase + IOM_BEGIN))
|
|
/*
|
|
* Given a physical address in the "hole",
|
|
* return a kernel virtual address.
|
|
*/
|
|
#define ISA_HOLE_VADDR(p) ((caddr_t) ((u_long)(p) - IOM_BEGIN + atdevbase))
|